Question

In: Physics

A sports car of mass 1000 kg can accelerate from rest to 72. km/h in 6.6...

A sports car of mass 1000 kg can accelerate from rest to 72. km/h in 6.6 s.
a) What would the average force of the car's engine be?
b) If the same force acts on 2000 kg car what is the acceleration.

Solutions

Expert Solution

(a) Find average force

Given:

Mass of the car,

Initial velocity of the car,

Final velocity of the car,

To convert km/hr to m/s. Multiply by 1000, then divide by 3600.

Time,

Use the formula to find the acceleration

--------

Average Force,

(a) ANSWER:

================================

b) If the same force acts on 2000 kg car what is the acceleration.

Average Force,

(b) ANSWER:

===============================

genius_generous answered 1 year ago

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