a ball is dropped from a height of 5m onto a sandy floor and penetrates the sand up to 10 cm before coming to rest find the retardation of the ball in sand assmuing it to be uniform.
the answer is 500m/sec2....the velocity of the ball on reaching the ground will be root of 2*10*5 (2gh) and it moves a distance of 10cm i.e 0.1m so the retardation is 500...............please rate me if u like it......
Three identical balls are placed on a frictionless
horizontal surface touching each other. They stick to
each other because of adhesive. Another ball of same
radius and mass m is placed over the void created by
the three balls. Find the forces applied by the balls
kept on the floor to each other if the system remains
in equilibrium.
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A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.
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Last Activity: 10 Months ago
Last Activity: 3 Years ago
Last Activity: 3 Years ago
