Plz Answer.....
Certain force acting on a 20 kg mass changes its velocity from 5 m s to 2 m s. Calculate the work done by the force.
ANSWER.... ☺ ☺
Certain force acting on a 20 kg mass changes its velocity from 5 m s to 2 m s. Calculate the work done by the force.
ANSWER.... ☺ ☺
Answers & Comments
Answer:
work done = change in its kinetic energy
w.e = 1/2 mv²
w.e = 1/2 × 20 × (5-2) here v = (final velocity- initial velocity)
w.e = 1/2 × 20 × 3
w.e = 30 joule