Question

A car starting from rest requires a speed of 20 metre per second in covering a distance of 100 M calculate the acceleration of the car

Answer 1

Given :-

Initial velocity of car is 0 m/s

Final velocity of car is 20 m/s

Distance covered by car is 100m

To Find :-

Acceleration of car

Solution :-

❍ We can find the acceleration by putting the values in the third equation of motion ::

v² = u² + 2as

Where,

• v denotes final velocity
• u denotes initial velocity
• a denotes acceleration
• s denotes distance covered

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Finding Acceleration :-

=> ( 20 )² = ( 0 )² + ( 2 × a × 100 )  

=>  400 = 0 + 200a

  => 200a  = 400 - 0    

=> 200a = 400  

=> a = 400/200  

=> a = 2m/s²

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• Henceforth, acceleration of car is 2m/s²