A retarding force is applied to stop a train. The train stops after 80 m. If the speed is doubled, then the distance travelled when same retarding force is applied is
Text Solution
Verified by ExpertsThe correct answer is:
D
F 80 = 
mV 2 , FS = 
m (2V) 2
So, 
= 4, S = 4 (80)
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