A car of mass 3*10^3 kg traveling at 54km/hr in a straight road is brought to rest in a distance of 100m by applying the breaks. Calculate the workdone. ( Class 11 - Work, Energy and Power ).
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Answer:
336 x 10³ J
Explanation:
mass 3*10^3 kg
v =54km/hr = 15 m/s
s = 100m
Using the eq v² - u² =2as
a = 225 /200
= 1.125 m/s²
workdone =mas = 3x 10³ x 1.125 x 100
= 336 x 10³ J
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