The following car has a mass of 400 kg. Calculate the frictional force if the car accelerated at a rate of 2.5 m/s2 when a driving force of 1500N was applied

500N

Explanation:

Given parameters:

Mass of the car = 400kg

Acceleration of the car  = 2.5m/s²

Driving force = 1500N

Unknown:

Frictional force = ?

Solution:

Frictional force is a force that opposes motion.

    Force on car from the engine  = mass x acceleration

    Insert parameters and solve;

        Force from the engine  = 400 x 2.5  = 1000N

Braking force  = 1500N

Now,

     Frictional force  = 1500N - 1000N = 500N

i do.

explanation:

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