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When a train moves along a straight track at a velocity of 95 km hr north A person walks toward the back of the train at a velocity of 3 km hr south what is the persons velocity relative to the ground?
Wiki User
∙ 15y ago
If the person sat on the train their velocity relative to the ground would be 95kph. But he/she is goind 3kph to oppose this. So 95-3 = 92 kph to the north is velocity of person relative to the ground.
Wiki User
∙ 15y ago
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An arrow is shot straight up at an initial velocity of 250ms How long will it take to hit the ground?
This is a velocity question so u need to use uvaxt
A child drops a ball from a window. The ball strikes the ground in 3.0 seconds. What is the velocity of the ball the instant before it hits the ground?
A child drops a ball from a window. The ball strikes the ground in 3.0 seconds. What is the velocity of the ball the instant before it hits the ground?
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The answer will depend on what "it" is, and on what its initial velocity is.
Will a ball drop rest reach the ground quicker than the one lunched from the same height but with and initial horizontal velocity?
No. What counts in this case is the vertical component of the velocity, and the initial vertical velocity is zero, one way or another.
A baseball is hit straight up at an initial velocity of 100 meters per second. What will be the baseball's speed when it hits the ground?
I assume you hit it up from the ground level as well. From Conservation of Energy, it immediately follows that: * If there is no air resistance, when it hits the ground it will, once again, have a speed of 100 meters per second. * Since under usual circumstances there WILL BE air resistance, its speed will be less than 100 meters per second.
What is the velocity of a person relative to the ground?
The velocity of a person relative to the ground depends on their speed and direction of movement. It is typically measured in meters per second (m/s) or kilometers per hour (km/h) and can be positive (moving forward) or negative (moving backward). This velocity is determined by the person's motion relative to the stationary ground.
Speed what does it mean?
Speed is the relative velocity of a body (such as an athlete) given a frame of reference (such as the ground).
You are walking toward the back of a bus that is moving forward with a constant velocity. Describe your motion relative to the bus and relative to a point on the ground?
Relative to the bus, you are moving towards the back. If your walking speed is slower than the speed of the moving bus (which it usually will be) then your motion relative to a point on the ground will be moving in the direction of the moving bus, but slower by the speed at which you are walking.
A baseball is hit straight up at an initial velocity of 150MS. what will be the baseballs speed when it hits the ground?
20.40
If a airplane flies north at a speed of 150 km relative to the air through which it flies If there is a tail wind of 50 km what is the plane's velocity relative to the ground?
a small airplane flies in a straight line at a average speed of 150 km/hour .how long dose it take the plane to fly 250 km
An arrow is shot straight up at an initial velocity of 250ms How long will it take to hit the ground?
This is a velocity question so u need to use uvaxt
If you flip a coin just as the airplane takes off from thr runway the coin will land behind you yew or no?
Actually, you AND the coin are travelling at the same velocity as the plane. Therefore, when you flip it up it will come straight back to you and not into the guy behind you...as long as your throw is straight up in the air, of course. This is called relative velocity: the coin is traveling at a horizontal velocity of zero RELATIVE TO THE PLANE, but it is travelling at 400km/h (or whatever the plane is travelling at) RELATIVE TO THE GROUND.
How long will it take to hit the ground if a baseballl is hit straight up at an initial velocity of 100 ms?
Assuming the acceleration due to gravity is -9.81 m/s^2, the time it takes for the baseball to hit the ground can be calculated using the formula: time = (final velocity - initial velocity) / acceleration. In this case, the final velocity will be 0 m/s when the baseball hits the ground. Calculating it would give you the time it takes for the baseball to hit the ground.
A plane flying 100kmh due north encounters a crosswind of 100kmh from the east ie blowing westward What then is the planes velocity relative to the ground?
The resultant velocity of the plane relative to the ground can be calculated using vector addition. Given the plane's speed due north (100 km/h) and the crosswind speed (100 km/h westward), use the Pythagorean theorem to find the resultant velocity. The resultant velocity will be 141 km/h at an angle of 45 degrees west of north.
How do you calculate the velocity of the boat relative to shore?
To calculate the velocity of the boat relative to the shore, you would subtract the velocity of the shore from the velocity of the boat. This difference will give you the boat's speed and direction with respect to the shore.
What is relative time in physics?
Time ticks at different rates, determined by ones velocity through space, or proximity to a massive object. The difference in your time and mine, or that gps satellite and ground based clock make it relative.
What is true of a person walking up the steps of a downward moving escalator at a constant speed?
The person's speed relative to the ground is constant, however, their speed relative to the escalator is slower because they are moving against its direction.
