What average net force is required to accelerate a car with a mass of 1200 kg from rest to 27.0 m/s2 in 10.0 s ?

1620 N
4360 N
444 N
11800 N
3240 N

Respuesta :

Use formula F = MA
Acceleration= (27 m/s2)/10s = 2.7 m/s/s
F = 1200kg * 2.7 m/s/s = 3240 N

The average net force required to accelerate the car is 3240 N

What is acceleration?

This is defined as the rate of change of velocity which time. It is expressed as

a = (v – u) / t

Where

  • a is the acceleration
  • v is the final velocity
  • u is the initial velocity
  • t is the time

How to determine the acceleration

  • Initial velocity (u) = 0 m/s
  • Final velocity (v) = 27 m/s
  • Time (t) = 10 s
  • Acceleration (a) =?

a = (v – u) / t

a = (27 – 0) / 10

a = 2.7 m/s²

How to determine the force

  • Mass (m) 1200 Kg
  • Acceleration (a) = 2.7 m/s²
  • Force (F) = ?

F = ma

F = 1200 × 2.7

F = 3240 N

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