Question

How much net force is required to accelerate a 6 kg toy car initially at rest to a velocity of 2m/s in 4s?

Answer 1

3N

Step-by-step explanation:

Given parameters:

Mass of toy car = 6kg

Initial velocity = 0m/s

Final velocity = 2m/s

Time = 4s

Unknown:

Net force = ?

Solution:

The net force is given by;

Force = mass x acceleration;

Force = mass x
`(v - u)/(t)`

v is the final velocity

u is the initial velocity

t is the time taken

Now insert the parameters and solve;

Force = 6 x
`(2 - 0)/(4)` = 3N