A car that is initially moving to the right with a velocity of 4 m/s is pushed by a -5 N force as it moves from 5 meters to 20 meters. How much work is done to the car by this force?

the work done on the car by the applied force is 75 J.

Explanation:

Given;

initial velocity of the car, v = 4 m/s

applied force in opposite direction, F = 5N

initial position of the car, x₀ = 5 m

final position of the car, x₁ = 20 m

displacement of the car, Δx = x₁ - x₀ = 20 m - 5m

                                                            = 15 m

The work done on the car by the applied force is calculated as follows;

W = F.Δx

W = 5 x 15

W = 75 J

Therefore, the work done on the car by the applied force is 75 J.

b) 10 minutes

girls stopped for 10 minutes.

the correct choice is a .

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