A body of mass 3 kg is dropped from a height of 1m. The K.E of the body before touching the ground is: (Take g = 10 ms^2).
150 J
30 N
30 J
150 N
A body of mass 3 kg is dropped from a height of 1m. The K.E of the body before touching the ground is: ......
A body of mass 20 kg is dropped from a height of 2 m. If g is taken to be equal to10ms−2, the kinetic energy of the body just before striking the ground will be: