A body of weight 640 N body is at rest. Another body of weight 310 N moving to the left with a velocity of 15 m/s collides with body which is at rest. After impact the body which is moving before impact comes to rest. Find the final velocity of body after impact and the coefficient of restitution .
(a).A body of weight 640 N body is at rest. Another body of weight 310 N moving to the left with a velocity of 15 m/s collides with body which is at rest. After impact the body which is moving before impact comes to rest. Find the final velocity of body after impact and the coefficient of restitution .
(b).A truck of mass 19 tonnes runs into a buffer stop having two buffer springs connected in series each of 1250 kN/cm and 2250 kN/cm stiffness respectively. Find the maximum compression of the springs, if the truck is travelling at 60 km/hr. Also calculate the load acting on the spring.
(a)Solution
The final velocity of body after impact in m/s is
The coefficient of restitution is
(b)Solution
The maximum compression of the spring in mm is
The load acting on the spring in kN is
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