Question

4. A car of mass 800 kg accelerates from 5m / s to 25m / s in 10 s. a) Calculate the acceleration. b) Calculate the resultant force exerted.​

Answer 1

A) As, the accelerarion equation is V - U/t

so its 25-5/10 so its 2m/s^2

B) With the above answer in A) we can calculate the force with the equation f = m * a

so , 800*2 = 1600N

Answer 2

Answer: To calculate the acceleration of the car, we can use the equation:

acceleration = (final velocity - initial velocity) / time

Plugging in the values given in the question, we get:

acceleration = (25 m/s - 5 m/s) / 10 s = 2 m/s^2

To calculate the resultant force exerted on the car, we can use the equation:

resultant force = mass * acceleration

Plugging in the values given in the question, we get:

resultant force = 800 kg * 2 m/s^2 = 1600 N

This is the force that must be exerted on the car to accelerate it from 5 m/s to 25 m/s in 10 s.