Wiki User
∙ 13y agoSince there is no air, there is no air resistance so acceleration of free-fall is constant throughout the fall. Thus the first of the four equations of motion can be used.
v = u + at
where v = final velocity, u = initial velocity, a = constant acceleration, t = time of motion
v = 0 + (9.8 m/sec/sec)(2 sec) = 19.6 meters per second.
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Speed = (acceleration) x (time)
Acceleration of a dropped rock = gravity = 9.8 m/s2
Speed = (9.8) x (2) = 19.6 m/sec
Wiki User
∙ 13y ago19.6 meters / 64.4 ft
the answer is 24-9 m/sec. yuor welcome
176.4 meters
Acceleration of the arrow is -3m/s2A = (velocity minus initial velocity) / time
If the ball was dropped from a roof and hit the ground 3.03 seconds later, then when it hit the groundits velocity was 29.694 meters (97.42 feet) per second (rounded) downward.
19.6 meters / 64.4 ft
the answer is 24-9 m/sec. yuor welcome
The velocity of a freely falling object 5 seconds after being dropped is approximately 49 meters per second (m/s) downwards. This is the velocity an object reaches due to the acceleration of gravity (9.8 m/s^2) acting on it.
The speed of an object in free fall after falling for 2 seconds is approximately 19.6 m/s.
The initial potential energy of the laundry bag is given by PE = mgh, where m is the mass (6.65 kg), g is the acceleration due to gravity (9.81 m/s^2), and h is the initial height (3.20 m). Therefore, the initial potential energy is PE = 6.65 kg * 9.81 m/s^2 * 3.20 m = 208.33 J.
4 Seconds
Acceleration occurs when velocity changes over time. The formula for it is as follows: a = (Vf - Vi) / t a: acceleration (meters/seconds2) Vf: Final velocity (meters/seconds) Vi: Initial Velocity (meters/seconds) t: Time (seconds)
The acceleration due to gravity is 9.8 meters per second squared, not 98. This means that an object in free fall will increase its speed by 9.8 m/s every second.
176.4 meters
The acceleration of gravity is 9.8 meters/sec2.In 1.5 seconds after it's dropped, any object is falling at (9.8 x 2) = 19.6 meters/sec.The mass of the rock makes no difference.
The speed of an object after falling for 3 seconds, ignoring air resistance, would be approximately 29.4 m/s. This value is derived from the acceleration due to gravity (9.8 m/s^2) multiplied by the time the object has been falling (3 seconds).
Assuming the object is in free fall and neglecting air resistance, the distance an object falls in 2.56 seconds can be calculated using the formula for free fall: d = 0.5 * g * t^2. Given that the acceleration due to gravity is approximately 9.81 m/s^2, the distance fallen can be determined by plugging these values into the formula.