Question

What is the magnitude of force required to accelerate a car

of mass
1.7 x 10^3 kilograms by 4.75 meters/second^2?
A. 3.6 x 102 newtons
B. 1.7 x 103 newtons
C. 8.1 x 103 newtons
D. 9.0 x 103 newtons​

Answer 1

8,075N

Explanation:

The information we have is:

Mass:

`m=1.7x10^3kg`

Acceleration:

`a=4.75m/s^2`

We are asked to find the force that is necessary to create that acceleration in the given mass.

For this we use the equation of Newton's second law:

`F=ma`

and now we susbtitute all the values into the equation to find the force
`F`:

`F=(1.7x10^3kg)(4.75m/s^2)\\F=8,075N`

The magnitude of the force required is 8,075N

Answer 2

8.71 x 10^3N - C

Explanation:

Force = mass x acceleration

mass = 1.7 x 10^3 and acceleration = 4.75m/s^2

Force = 1.7 x 10^3 x 4.75 = 8075N = 8.71 x 10^3N