Calculate the change in velocity of 70 kg object being pulled with 1000N force force 10 s

Question

Physics

Sullivan Watkins

2 March, 21:14

Calculate the change in velocity of 70 kg object being pulled with 1000N force force 10 s

+2

Answers (1)

Know the Answer?

Sienna Cannon · Answer 1

71.43m/s

Explanation:

F = m (v - u) / t

Give mass m = 70kg

Force f = 1000N

Time t = 5 secs

Change in velocity (v-u) = ?

Using the above formula

1000 = 70 (v - u) / 5

Cross multiply

1000 x 5 = 70 (v - u)

Divide both sides by 70

5000/70 = 70 (v - u) / 70

71.43 = v-u

v-u = 71.43m/s