lostinthewaves
lostinthewaves lostinthewaves
  • 03-11-2019
  • Physics
contestada

An 1100kg car reached 30m/s in 9s from rest. What force did the engine provide?

Respuesta :

Hania12
Hania12 Hania12
  • 07-11-2019

Answer:

≅3666.67 N

Explanation:

Use Newton's 2nd law, F = ma where F=force applied, m = mass of the object,

a = acceleration acquired by the object.

a= (v-u)/t where v = final velocity, u = initial velocity and t = time taken

calculate a = (30-0)/9 ≅ 3.33 m/s2

Then F = 1100×a = 3666.67 N

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