the speed of a body decreases from 72 km per hour to 54 km per hour at retardation of 0.2 metre per second square find the distance travelled during this time
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★ Ello ★
here is your answer !!
to convert m / s multiply by 5/ 18
72 × 5 / 18
=> 20 m / s
and , 54km
5 / 18 × 54
=> 15 m / s
a = v - u / t
=> -0.2 = 15 -20 / t
2 / 10 = 5 / t
t = 25 sec .
distance = speed× time
25×5
=> 75 m
hence , your answer is
★ 75 m ★
hope it helps you dear !!
here is your answer !!
to convert m / s multiply by 5/ 18
72 × 5 / 18
=> 20 m / s
and , 54km
5 / 18 × 54
=> 15 m / s
a = v - u / t
=> -0.2 = 15 -20 / t
2 / 10 = 5 / t
t = 25 sec .
distance = speed× time
25×5
=> 75 m
hence , your answer is
★ 75 m ★
hope it helps you dear !!
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