A 30kg hammer strikes a steel spike (nail) 2.30 cm in diameter while moving with speed 20.0 m/s. The hammer rebounds with speed 10.0 m/s after 0.110s. The average strain in the spike during the impact will be

($Y=2\times {10}^{11}N/m^2$)

Q.

A 30kg hammer strikes a steel spike (nail) 2.30 cm in diameter while moving with speed 20.0 m/s. The hammer rebounds with speed 10.0 m/s after 0.110s. The average strain in the spike during the impact will be

($Y=2\times {10}^{11}N/m^2$)

Q. A 30.0 kg hammer, moving with speed speed 20.0 $m{s}^{-1}$, strikes a steel Spike 2.30 cm in diameter. The hammer rebounds with speed 10.0 $m{s}^{-1}$ after 0.110 s .What is the average Strain in the Spike during the impact?

Q. A hammer weighing 3 kg, moving with a velocity of 10 m/s, strikes against the head of a spike and drives it into a block of wood. If the hammer comes to rest in 0.025 s, the average (retarding) force acting on the spike will be

Q. A hammer weighing 3 kg, moving with a velocity of 10 m/s, strikes against the head of a spike and drives it into a block of wood. If the hammer comes to rest in 0.025 s, the impulse associated with the spike will be :

Q. A hammer weighing $3kg$, moving with a velocity of $10m/s$, strikes against the head of a spike and drives it into a block of wood. If the hammer comes to rest in $0.025s$, the impulse associated with the hammer will be