141822 A ball of mass \(200 \mathrm{~g}\) is thrown directly upward from \(X\)-axis from \(x=2 \mathrm{~m}\) position. The initial speed of the ball is \(40 \mathrm{~m} / \mathrm{s}\). The magnitude (absolute value) of the angular momentum of the ball about the origin \((x=0)\), when ball is halfway back to the ground is:
141823 A helicopter rises from rest on the ground vertically upwards with a constant acceleration g. A food packet is dropped from the helicopter when it is at a height \(h\). The time taken by the packet to reach the ground is close to (Here, \(g\) is the acceleration due to gravity).
141824 A ball is dropped from a bridge that is \(45 \mathrm{~m}\) above the water. It falls directly into a boat which is moving with constant velocity. The boat is \(12 \mathrm{~m}\) away from the point of impact when the ball is dropped. The speed of the boat is \(\left(\right.\) take, \(g=10 \mathrm{~m} / \mathrm{s}^{2}\) )
141825 A man in a lift ascending with an acceleration throws a ball vertically up with a velocity \(v\) and catches it after time 3 sec. Afterwards when the lift is descending with the same acceleration, the man again throws the ball vertically up with the same velocity and catches it after 1 sec. Find \(v\) (use \(g=10 \mathrm{~m} / \mathrm{s}\) ).
141822 A ball of mass \(200 \mathrm{~g}\) is thrown directly upward from \(X\)-axis from \(x=2 \mathrm{~m}\) position. The initial speed of the ball is \(40 \mathrm{~m} / \mathrm{s}\). The magnitude (absolute value) of the angular momentum of the ball about the origin \((x=0)\), when ball is halfway back to the ground is:
141823 A helicopter rises from rest on the ground vertically upwards with a constant acceleration g. A food packet is dropped from the helicopter when it is at a height \(h\). The time taken by the packet to reach the ground is close to (Here, \(g\) is the acceleration due to gravity).
141824 A ball is dropped from a bridge that is \(45 \mathrm{~m}\) above the water. It falls directly into a boat which is moving with constant velocity. The boat is \(12 \mathrm{~m}\) away from the point of impact when the ball is dropped. The speed of the boat is \(\left(\right.\) take, \(g=10 \mathrm{~m} / \mathrm{s}^{2}\) )
141825 A man in a lift ascending with an acceleration throws a ball vertically up with a velocity \(v\) and catches it after time 3 sec. Afterwards when the lift is descending with the same acceleration, the man again throws the ball vertically up with the same velocity and catches it after 1 sec. Find \(v\) (use \(g=10 \mathrm{~m} / \mathrm{s}\) ).
141822 A ball of mass \(200 \mathrm{~g}\) is thrown directly upward from \(X\)-axis from \(x=2 \mathrm{~m}\) position. The initial speed of the ball is \(40 \mathrm{~m} / \mathrm{s}\). The magnitude (absolute value) of the angular momentum of the ball about the origin \((x=0)\), when ball is halfway back to the ground is:
141823 A helicopter rises from rest on the ground vertically upwards with a constant acceleration g. A food packet is dropped from the helicopter when it is at a height \(h\). The time taken by the packet to reach the ground is close to (Here, \(g\) is the acceleration due to gravity).
141824 A ball is dropped from a bridge that is \(45 \mathrm{~m}\) above the water. It falls directly into a boat which is moving with constant velocity. The boat is \(12 \mathrm{~m}\) away from the point of impact when the ball is dropped. The speed of the boat is \(\left(\right.\) take, \(g=10 \mathrm{~m} / \mathrm{s}^{2}\) )
141825 A man in a lift ascending with an acceleration throws a ball vertically up with a velocity \(v\) and catches it after time 3 sec. Afterwards when the lift is descending with the same acceleration, the man again throws the ball vertically up with the same velocity and catches it after 1 sec. Find \(v\) (use \(g=10 \mathrm{~m} / \mathrm{s}\) ).
141822 A ball of mass \(200 \mathrm{~g}\) is thrown directly upward from \(X\)-axis from \(x=2 \mathrm{~m}\) position. The initial speed of the ball is \(40 \mathrm{~m} / \mathrm{s}\). The magnitude (absolute value) of the angular momentum of the ball about the origin \((x=0)\), when ball is halfway back to the ground is:
141823 A helicopter rises from rest on the ground vertically upwards with a constant acceleration g. A food packet is dropped from the helicopter when it is at a height \(h\). The time taken by the packet to reach the ground is close to (Here, \(g\) is the acceleration due to gravity).
141824 A ball is dropped from a bridge that is \(45 \mathrm{~m}\) above the water. It falls directly into a boat which is moving with constant velocity. The boat is \(12 \mathrm{~m}\) away from the point of impact when the ball is dropped. The speed of the boat is \(\left(\right.\) take, \(g=10 \mathrm{~m} / \mathrm{s}^{2}\) )
141825 A man in a lift ascending with an acceleration throws a ball vertically up with a velocity \(v\) and catches it after time 3 sec. Afterwards when the lift is descending with the same acceleration, the man again throws the ball vertically up with the same velocity and catches it after 1 sec. Find \(v\) (use \(g=10 \mathrm{~m} / \mathrm{s}\) ).