Question

The diagram shows a homemade car being pushed with a force of 25 N.

Answer 1

The speed of the car will increase.

Step-by-step explanation:

From idea of momentum, force is directly proportional to velocity

`{ \bf{f \: \alpha \: v}} \\ { \rm{f = kv}}`

Initially, f = 25N and v = 3 m/s

`{ \rm{25 = k * 3}} \\ \\ { \rm{k = (25)/(3) }}`

Lastly, f = 35

`{ \rm{f = (25)/(3)v }} \\ \\ { \rm{35 = (25)/(3) * v}} \\ \\ { \rm{v = (3 * 35)/(25) }} \\ \\ { \rm{v = 4.2} }`