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The acceleration-time graph of a particle moving along a straight line is as shown in figure. At what time the particle acquires its initial velocity ?
19
Oct
The acceleration-time graph of a particle moving along a straight line is as shown in figure. At what time the particle acquires its initial velocity ? The acceleration-time graph of a particle moving along a straight line is as shown in figure. At what time the particle acquires its initial velocity ? October 19, 2020 [...]
Drops of water fall at regular intervals from roof of a building of height H = 16 m, the first drop striking the ground at the same moment as the fifth drop detaches itself from the roof. The distances between separate drops in air as the first drop reaches the ground are
19
Oct
Drops of water fall at regular intervals from roof of a building of height H = 16 m, the first drop striking the ground at the same moment as the fifth drop detaches itself from the roof. The distances between separate drops in air as the first drop reaches the ground are Drops of water [...]
A particle slides from rest from the topmost point of a vertical circle of radius r along a smooth chord making an angle θ with the vertical. The time of descent is .
19
Oct
A particle slides from rest from the topmost point of a vertical circle of radius r along a smooth chord making an angle θ with the vertical. The time of descent is . A particle slides from rest from the topmost point of a vertical circle of radius r along a smooth chord making an [...]
Taxies leave station X for station Y every 10min. Simultaneously, a taxi also leaves station Y for station X every 10min. The taxies move at the same constant speed and go from X and Y or vice-versa in 2h, How many taxies coming from the other side will meet each taxi enroute from Y and X?.
19
Oct
Taxies leave station X for station Y every 10min. Simultaneously, a taxi also leaves station Y for station X every 10min. The taxies move at the same constant speed and go from X and Y or vice-versa in 2h, How many taxies coming from the other side will meet each taxi enroute from Y and [...]
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a taxi also leaves station Y for station X every 10min. The taxies move at the same constant speed and go from X and Y or vice-versa in 2h ,
How many taxies coming from the other side will meet each taxi enroute from Y and X?. ,
Taxies leave station X for station Y every 10min. Simultaneously ,
A particle starts from the origin with a velocity of 10ms^−1 and moves with a constant acceleration till the velocity increases to 50ms^−1. At that instant, the acceleration is suddenly reversed. What will be the velocity of the particle, when it returns to the starting point?
19
Oct
A particle starts from the origin with a velocity of 10ms^−1 and moves with a constant acceleration till the velocity increases to 50ms^−1. At that instant, the acceleration is suddenly reversed. What will be the velocity of the particle, when it returns to the starting point? A particle starts from the origin with a velocity [...]
The kinetic energy (KE) versus time graph for a particle moving along a straight line is as shown in the figure. The force versus time graph for the particle may be
19
Oct
The kinetic energy (KE) versus time graph for a particle moving along a straight line is as shown in the figure. The force versus time graph for the particle may be The kinetic energy (KE) versus time graph for a particle moving along a straight line is as shown in the figure. The force versus [...]
A spring and block are placed on a fixed smooth wedge as shown. Following conclusions can be drawn for the block. (i) magnitude of its momentum will be maximum when F net on block is zero (ii) its kinetic energy will be maximum when F net on block is zero (iii) kinetic energy of block is maximum when block just touches the spring (iv) net force on block is maximum when KE = 0
19
Oct
A spring and block are placed on a fixed smooth wedge as shown. Following conclusions can be drawn for the block. (i) magnitude of its momentum will be maximum when F net on block is zero (ii) its kinetic energy will be maximum when F net on block is zero (iii) kinetic energy of block [...]
Suppose y represents the work done and x the power, then dimensions of d^2y/dx^2 will be
19
Oct
Suppose y represents the work done and x the power, then dimensions of d^2y/dx^2 will be Suppose y represents the work done and x the power then dimensions of d^2y/dx^2 will be October 19, 2020 Category: Arihant Physics by D.C Pandey , Chapter 6 - Work, Energy and Power , Volume 2 ,
A block is released from the top of a smooth inclined plane of inclination θ as shown in figure. Let υ be the speed of the particle after travelling a distance s down the plane. Then which of the following will remain constant ?
19
Oct
A block is released from the top of a smooth inclined plane of inclination θ as shown in figure. Let υ be the speed of the particle after travelling a distance s down the plane. Then which of the following will remain constant ? F=2x^2−3x−2 . Choose correct option. October 19, 2020 Category: Arihant Physics [...]
A particle of mass 0.5kg is displaced from position r→1(2,3,1) to r→2(4,3,2) by applying a force of magnitude 30N which is acting along (iˆ+jˆ+kˆ). The work done by the force is
19
Oct
A particle of mass 0.5kg is displaced from position r→1(2,3,1) to r→2(4,3,2) by applying a force of magnitude 30N which is acting along (iˆ+jˆ+kˆ). The work done by the force is 1) to r→2(4 2) by applying a force of magnitude 30N which is acting along (iˆ+jˆ+kˆ). The work done by the force is 3% [...]