Question

calculate the force needed to speed up a car with rate 5ms -2 if the mass of car is 1000 kg

Answer 1

Given,

Acceleration of a car = 5 m/s²

Mass of the car = 1000 kg

To Find,

The force needed to speed the car.

Solution,

The formula for calculating the force is

Force = mass*acceleration

          = 1000*5

          = 5000 N.

Hence, the force needed to speed up the car of mass 1000kg with rate of 5 m/s² is 5000 N.

Answer 2

Answer:

The force needed to speed up the car is 5×10³N.

Explanation:

First, let's define force.

Force is an external agent that is capable of changing the state of rest or motion of a particular body. It is a vector quantity having both magnitude and direction. The quantity of force is defined as the product of mass and acceleration. i.e.

$F=m\times a$           (1)

Where,

F=force applied on the body

m=mass of the body

a=acceleration of the body

From the question we have,

a=5m/s²

m=1000kg

By substituting the value of m and a in equation (1) we get;

$F=1000\times 5=5000N=5\times 10^3N$

Hence, the force needed to speed up the car is 5×10³N.