Question

As a demonstration of the gravitational force on falling objects for Rick's class, he drops a 15 lb. watermelon from the top of the science building. Determine velocity of the watermelon after falling for 2.0 seconds assuming it has reach free fall and given the gravitational acceleration of 9.8 m2/sec.

Answer 1

Answer:

19.6 m/s

Explanation:

we have been given following information:

u = 0m/s

t= 2s

a= 9.8m/s sq.

using first equation of motion

v= u + at

v= 0+ 9.8×2

=19.6m/s