At a certain instant a ball moving vertically upward has a speed of
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
At a certain instant a 1.5kg ball moving vertically upward has a speed of 4m/s. Its total mechanical energy with respect to the ground at that instant is 100J. Take g=9.8m/s2.
(a) Calculate the kinetic energy of the ball at that instant.
(b) Hence find its gravitational potential energy with respect to the ground.
(c) Determine the height of the ball above the ground at that instant.