drejones0104 drejones0104

22-02-2020
Physics

contestada

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

Respuesta :

Onoriodefelix Onoriodefelix

22-02-2020

Answer:

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

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