Questions
If a bullet of mass 5 gm moving with velocity 100 m/sec, penetrates the wooden block upto 6 cm. Then the average force imposed by the bullet on the block is
detailed solution
Correct option is B
u = 100 m/s, v = 0, s = 0.06 mRetardation = a = u22s= (100)22×0.06 = 1 × 10612Force = ma = 5×1×10-3×10612 = 500012 = 417 NTalk to our academic expert!
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Statement I : The familiar equation mg = R for a body on a table is true only if the body is in equilibrium.
Statement II : The equality of mg and R has no connection with the third law.
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