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ICSE Class 10 Answered

How far must a 250 kg pile driver fall if it is to be capable of doing 12700 J of work?
Asked by snehalburud22.10spicertl | 11 Jun, 2020, 03:26: PM
answered-by-expert Expert Answer
Work done = Force × dispacement 
W = Fs ... (1)
W =12700 J ... (Given)
F = mg = 250 × 9.8 = 2450 N 
s - distance at which the pile driver will fall 
 
Thus, 
12700 = 2450 × s 
s = 5.18 m 
Answered by Shiwani Sawant | 11 Jun, 2020, 08:26: PM

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