A ball is dropped from the top of a 100 m high tower on a planet. In the last (1/2)* before hitting the ground, it covers a distance of 19 m. Acceleration due to gravity (in ms–2) near the surface on that planet is _____
Time to travel 81 m is t sec.
Time to travel 100 m is t + (1/2) sec.
a = 8 m/s2
