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A train starting from rest accelerates uniformly for 100 s, then comes to a stop with a uniform retardation in the next 200 s. During the motion, it covers a distance of 3 km. Choose the wrong option
06
Sep
A train starting from rest accelerates uniformly for 100 s, then comes to a stop with a uniform retardation in the next 200 s. During the motion, it covers a distance of 3 km. Choose the wrong option A train starting from rest accelerates uniformly for 100 s it covers a distance of 3 km. [...]
The engine of a motorcycle can produce a maximum acceleration of 5 m/s^2. Its breaks can produce a maximum retardation 10 m/s^2. What is the time in which the motorcycle can cover a distance of 1.5 km ?
06
Sep
The engine of a motorcycle can produce a maximum acceleration of 5 m/s^2. Its breaks can produce a maximum retardation 10 m/s^2. What is the time in which the motorcycle can cover a distance of 1.5 km ? A particle starts its motion from rest under the action of a constant force. If the distance [...]
A long horizontal wire AB, which is free to move in a vertical plane and carries a steady current of 20A, is in equilibrium at a height of 0.01m over another parallel long wire CD which is fixed in a horizontal plane and carries a steady current of 30A, as shown in figure. Shown that when AB is slightly depressed, it executes simple harmonic motion. Find the period of oscillations.
06
Sep
A long horizontal wire AB, which is free to move in a vertical plane and carries a steady current of 20A, is in equilibrium at a height of 0.01m over another parallel long wire CD which is fixed in a horizontal plane and carries a steady current of 30A, as shown in figure. Shown that [...]
Tags:
A long horizontal wire AB ,
as shown in figure. Shown that when AB is slightly depressed ,
is in equilibrium at a height of 0.01m over another parallel long wire CD which is fixed in a horizontal plane and carries a steady current of 30A ,
it executes simple harmonic motion. Find the period of oscillations. ,
which is free to move in a vertical plane and carries a steady current of 20A ,
A car accelerates from rest at a constant rate α for some time after which it decelerates at a constant rate β to come to rest. If the total time elapsed is t, then the maximum velocity attained is
06
Sep
A car accelerates from rest at a constant rate α for some time after which it decelerates at a constant rate β to come to rest. If the total time elapsed is t, then the maximum velocity attained is A car accelerates from rest at a constant rate α for some time after which it [...]
A straight segment OC (of length L meter) of a circuit carrying a current I amp is placed along the x−axis ( fig.). Two infinitely long straight wires A and B , each extending from z=−∞+∞, are fixed at y=−a meter and y=+a meter respectively, as shown in the figure. If the wires A and B each carry a current I amp into the plane of the paper, obtain
06
Sep
A straight segment OC (of length L meter) of a circuit carrying a current I amp is placed along the x−axis ( fig.). Two infinitely long straight wires A and B , each extending from z=−∞+∞, are fixed at y=−a meter and y=+a meter respectively, as shown in the figure. If the wires A and [...]
Tags:
A straight segment OC (of length L meter) of a circuit carrying a current I amp is placed along the x−axis ( fig.). Two infinitely long straight wires A and B ,
are fixed at y=−a meter and y=+a meter respectively ,
as shown in the figure. If the wires A and B each carry a current I amp into the plane of the paper ,
each extending from z=−∞+∞ ,
obtain ,
A body A starts from rest with an acceleration a1. After 2 seconds, another body B starts from rest with an acceleration a2. If they travel equal distances in the 5th second, after the start of A, then the ratio a1 : a2 is equal to
06
Sep
A body A starts from rest with an acceleration a1. After 2 seconds, another body B starts from rest with an acceleration a2. If they travel equal distances in the 5th second, after the start of A, then the ratio a1 : a2 is equal to A body A starts from rest with an acceleration [...]
A man is d distance behind the bus when the bus starts accelerating from rest with an acceleration a0. With what minimum constant velocity should the man start running to catch the bus
06
Sep
A man is d distance behind the bus when the bus starts accelerating from rest with an acceleration a0. With what minimum constant velocity should the man start running to catch the bus A man is d distance behind the bus when the bus starts accelerating from rest with an acceleration a0. With what minimum [...]
A cyclist starts from rest and moves with a constant acceleration of 1 m/s^2. A boy who is 48 m behind the cyclist starts moving with a constant velocity of 10m/s. After how much time the boy meets the cyclist?
06
Sep
A cyclist starts from rest and moves with a constant acceleration of 1 m/s^2. A boy who is 48 m behind the cyclist starts moving with a constant velocity of 10m/s. After how much time the boy meets the cyclist? A particle starts its motion from rest under the action of a constant force. If [...]
A circular loop of radius R is bent along the diameter and given a shape as shown in figure. One of the semicirccles (KNM) lies in the x-Z plane and the other one (KLM) in the y-z plane with their centers at the origin. Current I is flowing through each of the
06
Sep
A circular loop of radius R is bent along the diameter and given a shape as shown in figure. One of the semicirccles (KNM) lies in the x-Z plane and the other one (KLM) in the y-z plane with their centers at the origin. Current I is flowing through each of the A current I [...]
Two trains travelling on the same track are approaching each other with equal speed of 40m/s. The drivers of the trains begin to decelerate simultaneously when just ` 2.0 km apart. Assuming deceleration to be uniform and equal the value to the deceleration to barely avoid collision should be .
06
Sep
Two trains travelling on the same track are approaching each other with equal speed of 40m/s. The drivers of the trains begin to decelerate simultaneously when just ` 2.0 km apart. Assuming deceleration to be uniform and equal the value to the deceleration to barely avoid collision should be . A particle starts its motion [...]