Question

a rear wheel drive car of mass 1000kg is accelerating with a constant acceleration without slipping from 0 to 60m/s in one minute. what will be the friction force on each rear wheel of the car?

Answer 1

To find the friction force on each rear wheel of the car, calculate the net force acting on the car, which is equal to the product of the car's mass and acceleration. Then, divide the net force by 2 to find the friction force on each rear wheel.

Step-by-step explanation:

To find the friction force on each rear wheel of the car, we need to calculate the net force acting on the car. The net force is equal to the product of the car's mass and acceleration. Given that the car has a mass of 1000 kg and accelerates from 0 to 60 m/s in one minute, we first need to convert the time to seconds by dividing it by 60. This gives us a time of 1 minute, which is equal to 60 seconds.

To find the acceleration, we can use the equation: acceleration = (final velocity - initial velocity) / time. Plugging in the values, we get: acceleration = (60 m/s - 0 m/s) / 60 s = 1 m/s².

Now, we can calculate the net force using the equation: net force = mass * acceleration. Plugging in the values, we get: net force = 1000 kg * 1 m/s² = 1000 N.

Since the car is rear-wheel drive, the net force is distributed equally between the two rear wheels. Therefore, the friction force on each rear wheel is half of the net force, which is: friction force = net force / 2 = 1000 N / 2 = 500 N.

Answer 2

Fs = 500 Newton

Step-by-step explanation:

Given data:

Mass = 1000 kg

Initial speed = 0 m/s

Final speed = 60 m/s

By equation of motion we know that

v = u + at

`60 = 0 + a* 60\ sec`

Therefore a is = 1 m/s^2

From Newton's second law

`Fs + Fs = ma`

where Fs is friction on each rear wheel

`2Fs = 1000*1`

2Fs = 1000

Fs = 500 Newton