Question

5) A car travels for 5 seconds with a speed of 72 km h and then applies brakes and retards uniformly for the next 5
seconds till it comes to rest. The total distance travelled by the car is:​

Answer 1

Explanation:

time=5 seconds

speed=72 km/hr

=72×5/18

=5×4

=20 m/ s

distance=20×5

=100 m

now,

again,

speed=20m/s

time=5 seconds

distance=20×5

=100 m

total distance travelled=100+100m

=200 m

Answer 2

Answer:

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