Arihant Physics by D.C Pandey
A particle A is projected vertically upwards. Another particle B is projected at an angle of 45^∘. Both reach the same height. The ratio of the initial kinetic energy of A to that of B is:
18
Oct
A particle A is projected vertically upwards. Another particle B is projected at an angle of 45^∘. Both reach the same height. The ratio of the initial kinetic energy of A to that of B is: A particle A is projected vertically upwards. Another particle B is projected at an angle of 45^∘. Both reach [...]
A particle of mass m is projected from the ground with initial linear momentum p (magnitude) such that to have maximum possible range, its minimum kinetic energy will be
18
Oct
A particle of mass m is projected from the ground with initial linear momentum p (magnitude) such that to have maximum possible range, its minimum kinetic energy will be A particle of mass m is projected from the ground with initial linear momentum p (magnitude) such that to have maximum possible range its minimum kinetic [...]
A particle is projected from the ground with an initial velocity of 20m/s at an angle of 30∘ with horizontal. The magnitude of change in velocity in a time interval from t=0 to t=0.5s (g=10m/s^2)
18
Oct
A particle is projected from the ground with an initial velocity of 20m/s at an angle of 30∘ with horizontal. The magnitude of change in velocity in a time interval from t=0 to t=0.5s (g=10m/s^2) A particle is projected from the ground with an initial velocity of 20m/s at an angle of 30∘ with horizontal. [...]
Velocity of a particle varies with time as v=atiˆ+2ht2jˆ. If the particle starts from point (0,c), the trajectory of the particle is
18
Oct
Velocity of a particle varies with time as v=atiˆ+2ht2jˆ. If the particle starts from point (0,c), the trajectory of the particle is C the trajectory of the particle is Velocity of a particle varies with time as v=atiˆ+2ht2jˆ. If the particle starts from point (0 October 18, 2020 Category: Arihant Physics by D.C Pandey , [...]
A car breaks a traffic signal with a speed of 40m/s. After 2s, a policeman starts following him with a constant acceleration of 12.5m/s^2. Taking the position of signal to be origin, correct position time graph would be
18
Oct
A car breaks a traffic signal with a speed of 40m/s. After 2s, a policeman starts following him with a constant acceleration of 12.5m/s^2. Taking the position of signal to be origin, correct position time graph would be A car breaks a traffic signal with a speed of 40m/s. After 2s a policeman starts following [...]
An airplane flies northward from town A and B and then back again. There is a steady wind blowing towards the north so that for the first state of the trip, the airplane is flying in the same direction as the wind and for the return trip of the journey, the airplane is flying opposite of the wind. The total trip time Tω as compared to the total trip time in the absence of any winds T0 is:
18
Oct
An airplane flies northward from town A and B and then back again. There is a steady wind blowing towards the north so that for the first state of the trip, the airplane is flying in the same direction as the wind and for the return trip of the journey, the airplane is flying opposite [...]
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An airplane flies northward from town A and B and then back again. There is a steady wind blowing towards the north so that for the first state of the trip ,
the airplane is flying in the same direction as the wind and for the return trip of the journey ,
the airplane is flying opposite of the wind. The total trip time Tω as compared to the total trip time in the absence of any winds T0 is: ,
A ball is dropped from a tower of height h under gravity. If it takes 4s to reach the ground from height h/2, then time taken by it to reach from h to h/2 is nearly:
18
Oct
A ball is dropped from a tower of height h under gravity. If it takes 4s to reach the ground from height h/2, then time taken by it to reach from h to h/2 is nearly: A ball is dropped from a tower of height h under gravity. If it takes 4s to reach the [...]
A particle is moving on a straight line. Its velocity at time t is (8−2t)m/s. What is the total distance covered from t = 0 to t = 6s?
18
Oct
A particle is moving on a straight line. Its velocity at time t is (8−2t)m/s. What is the total distance covered from t = 0 to t = 6s? A particle is moving on a straight line. Its velocity at time t is (8−2t)m/s. What is the total distance covered from t = 0 to [...]
Acceleration versus time curve for a particle moving in a straight line is shown in the figure. If particle starts from rest at t=0, then which of the following curve is correct for the same particle.
18
Oct
Acceleration versus time curve for a particle moving in a straight line is shown in the figure. If particle starts from rest at t=0, then which of the following curve is correct for the same particle. Acceleration versus time curve for a particle moving in a straight line is shown in the figure. If particle [...]
Velocity-time graph of a particle undergoing rectilinear motion is plotted upto t=t4 as shown in the figure. Average acceleration of the particle is zero in the time internal between
18
Oct
Velocity-time graph of a particle undergoing rectilinear motion is plotted upto t=t4 as shown in the figure. Average acceleration of the particle is zero in the time internal between Velocity-time graph of a particle undergoing rectilinear motion is plotted upto t=t4 as shown in the figure. Average acceleration of the particle is zero in the [...]