A balloon starts rising from ground,vertically upwards,uniformly at rate of 1m/s.At end of 4sec a body was released from balloon.Calculate the time taken by released body to reach ground?
1 second
0.27?
initial velocity of the body will be equal to the velocity of balloon i.e. 1m/s in upward direction....and thus calculate...the answer will be 1 sec....0.1s in going up and 0.9s in coming down....
the velocity of the released body is 1m/s upwards.
and its acceleration will be 10m/s2 downwards.
when released it was at a height of 4m from the ground.
so the equation is 5t2 - t - 4 = 0.
this gives t = 1s.
the body will take 1s to reach the ground.
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.
Last Activity: 11 Months ago
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.
11
21
31
41
Last Activity: 11 Months ago
Last Activity: 3 Years ago
Last Activity: 3 Years ago
