Question

A moving body of 40 kg has 180 J of KE. Calculate the speed​

Answer 1

Answer:

Speed = 3m/s answer

Explanation:

KE = ½ mv²

180 = ½ x 40 x v²

180 = 20 x v²

v² = 180/20

v = root(9)

v = 3 m/s

Answer 2

Answer:

Given

K.E = 180J

Mass = 40kgs

V = Velocity of the body

• To find....speed

As, KE = 1/2×m×v²

180×1/2 = 40×v²

90/40 = v²

√9/4 = v

v = 3/2 m/s....

Explanation:

Hope it helps you....