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 ▸What are the assumptions made when calculating values regarding an Ideal Gas?
A cannon is fired at 30 degrees from the ground and the cannonball has initial velocity of 15 m/s. What is the height of the highest point the cannonball reaches and how far is this point horizontally from the cannon?
State the principle of superposition of waves and illustrate it schematically.
A 100g mass is on a circular turntable spinning at 78 revolutions per minute. The maximum frictional force between the mass and turntable is 0.50N. Find the maximum distance from the center of the turntable at which the mass would stay on the turntable.