Answer to Question #84909 in Physics for jade

Question

a man pushes a 2,220 kg car with an average force of 128 N for 7.56 s. The impulse on the car is ___ N•s

Answer 1

By the definition of the impulse, we have:

$$J = F \cdot \Delta t,$$

here,

$$J$$

is the impulse on the car,

$$F$$

is the average force that acts on the car,

$$\Delta t$$

is the time during which the force acts on the car.

Then, we get:

$$J = F \cdot \Delta t = 128 N \cdot 7.56 s = 968 N \cdot s.$$

Answer:

$$J = 968 N \cdot s$$

.