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Which will hit the ground first a ball thrown horizontally at 2 meters per second off a building 20 m high or a ball dropped by a hand at the same height?
They should reach the ground together, since their initial vertical speed is the same, namely zero.
How many meters from the building should the heel of a 10 meter ladder be placed to reach a height of 8 meters?
To find the distance from the building where the heel of a 10-meter ladder should be placed to reach a height of 8 meters, we can use the Pythagorean theorem. Let ( d ) be the distance from the building. The equation is ( d^2 + 8^2 = 10^2 ). This simplifies to ( d^2 + 64 = 100 ), resulting in ( d^2 = 36 ), thus ( d = 6 ) meters. Therefore, the heel of the ladder should be placed 6 meters from the building.
How fast should you throw an apple so it can reach 6m in the air?
To determine the speed needed to throw an apple to reach a height of 6 meters, we can use the physics of projectile motion. The formula to calculate the initial velocity (v) required to reach a certain height (h) is ( v = \sqrt{2gh} ), where ( g ) is the acceleration due to gravity (approximately 9.81 m/s²). Plugging in the values, ( v = \sqrt{2 \times 9.81 , \text{m/s}^2 \times 6 , \text{m}} \approx 10.8 , \text{m/s} ). Thus, you should throw the apple at an initial speed of about 10.8 m/s to reach a height of 6 meters.
If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?
iron bar first
How far up a wall will a 10-meter ladder reach if the foot of the ladder is 5 meters away from the base of the wall?
To determine how far up the wall the ladder will reach, we can use the Pythagorean theorem. The ladder, the wall, and the ground form a right triangle where the ladder is the hypotenuse. If the ladder is 10 meters long and the foot is 5 meters away from the wall, we can calculate the height (h) as follows: ( h = \sqrt{10^2 - 5^2} = \sqrt{100 - 25} = \sqrt{75} \approx 8.66 ) meters. Therefore, the ladder will reach approximately 8.66 meters up the wall.
A ball is dropped from a height of 128 meters Each time the all bounces to half of its previous height After one bounce the ball readches a height of 64 meters How high did the ball reach after the 7?
After the 7th bounce, the ball will reach a height of 1 meter. This is because after each bounce, the ball reaches half of its previous height. So, after 1 bounce it reaches 64 meters, after 2 bounces it reaches 32 meters, after 3 bounces it reaches 16 meters, and so on, until it reaches 1 meter after the 7th bounce.
A ball is dropped from 10 feet above the ground.It hits the ground and bounces up half as high as it fellThis is true for each successive bounce.What height does the ball reach on the fourth bounce?
After each bounce, the ball reaches half of the height from which it was dropped. Since the ball was initially dropped from 10 feet, on the first bounce it will reach 5 feet, on the second bounce it will reach 2.5 feet, on the third bounce it will reach 1.25 feet, and on the fourth bounce it will reach 0.625 feet.
When You Drop An Object From A Certain Height It Takes Time T To Reach The Ground With No Air Resistance. If You Dropped It From Three Times That Height How Long Would It Take To Reach The Ground?
When an object is dropped from a certain height, the time it takes to reach the ground is independent of the height (assuming no air resistance). Therefore, whether you drop the object from three times the initial height or the original height, it will still take the same time (T) to reach the ground.
How high will a basketball bounce if dropped?
If we knew from what height the ball, when dropped, would reach its terminal velocity, and if we knew the percentage of rebound the ball would give, we could then be certain. I can only guess that a basketball will rebound approximately 75% of the height from which it is dropped, and if the height at which it would reach terminal velocity is maybe 300 feet, the ball would bounce back up to 225 feet. Just a guess! A basketball has an elasticity (or "bounciness") of about 56 percent.I'm not sure there's a theoretical limit. In practice, of course, there would be one: when the velocity of the ball impacting the ground is so great the ball explodes rather than bouncing. But you'd have to fire it out of some kind of basketball cannon to get it moving that fast.The official standard for ball inflation is that the ball should bounce roughly 75% of its drop height (specifically, between 49" and 54") when dropped from 6 feet. If you're referring to just the height a dropped ball could bounce and you're not throwing it down with some kind of basketball-downward-hurling machine, you could calculate the theoretical bounce height by figuring out what terminal velocity is for a basketball, calculating how high you'd have to drop it from (assuming no atmosphere) to achieve that velocity, and then multiplying by 0.75. I'm not going to do it for you, because I'm not actually all that interested in the answer, but that's how you could do it if you are.
A ball of mass 0.150kg is dropped from rest from a height of 1.25m. it rebounds from the floor to reach a height of 0.960m what impulse was given to the ball by the floor?
1.39 Ns up
What is the average height of a sycamore tree?
Most sycamore tree's reach 30-40 meters.
A penny dropped from the top of the Empire State Building takes 9.2 seconds to reach the street What is the height of the building?
The height of the building at the 102nd floor is 381 metres. The penny is irrelevant.
a penny dropped from the top of the empire state building takes 9.2 seconds to reach the street what is the height of the building?
The height of the building at the 102nd floor is 381 metres. The penny is irrelevant.
Does the mass of the ball affect how high it bounces?
a ball can never bounce over the height from which it was bounced unless u aplly a force. The factors that affect the bounce of a dropped ball include the height from which it is dropped; the force applied to it, if any, when dropped; the acceleration of gravity, which is different depending upon what planet you're one; the elasticity of the ball; the density of the atmosphere, which affects "air resistance"; and the rigidity and elasticity of the surface on which the ball bounces. weight also affect the bounce height.
Why will a 10 pound weight take just as long to hit the ground as a 5 pound weight dropped at the same time form the same height?
Both weights will fall at the same rate due to gravity. The acceleration due to gravity is constant regardless of the mass of the object, so both weights will reach the ground at the same time when dropped from the same height.
Which will hit the ground first a ball thrown horizontally at 2 meters per second off a building 20 m high or a ball dropped by a hand at the same height?
They should reach the ground together, since their initial vertical speed is the same, namely zero.
What is the average height of a Glacier?
The average height of a glacier can vary greatly depending on factors such as location, climate, and size. However, most glaciers range in height from a few meters to several hundred meters. Some of the largest glaciers, like those in Antarctica and Greenland, can reach heights of over 3,000 meters.
