A ball is kicked from a tower (50m) at a speed of 20m/s. How far away does the ball hit the ground?
time is equal to time in free fall i.e. 50m=0.5gt^2 -> t=root(50m*2/g)=1.019s
horizontal distance is then tv= 1.019s20m/s=20.38m
EG
Related Physics A Level answers
All answers ▸A ball is initially at rest and is dropped from a height of 10m. Calculate the velocity of the ball when it reaches the ground
A truck with mass 1200kg is moving at 8m/s when it collides head-on with a stationary car of mass 800kg. As they collide, the vehicles move together with the same velocity, v. Calculate this velocity.
A space probe of mass 1000kg, moving at 200m/s, explosively ejects a capsule of mass 300kg. The speed of the probe after the explosion is 250m/s. What is the velocity of the capsule?
What is the de Broglie wavelength? Why do we care?