A

25-g

ball is released from rest

80m

above the surface of the Earth. During the fall the total thermal energy of the ball and air increases by

15J

. Just before it hits the surface its speed is\

19(m)/(s)

\

35(m)/(s)

\

40(m)/(s)

A 25g ball is released from rest 80m above the surface of the Earth. During the fall the total thermal energy of the ball and air increases by 15J. Just before it hits the surface its speed is 19m/s 35m/s 40m/s