T) can vanish for a suitably chosen T. Which one is it?
A bird is tossing (flying to and fro) between two cars moving towards each other on a straight road. One car has speed of 27 km h^−1 while the other has the speed of 18 km h^−1. The bird starts moving from first car towards the other and is moving with the speed of 36 km h^−1 when the two were separated by 36 km. The total distance covered by the bird is
30
Oct
A bird is tossing (flying to and fro) between two cars moving towards each other on a straight road. One car has speed of 27 km h^−1 while the other has the speed of 18 km h^−1. The bird starts moving from first car towards the other and is moving with the speed of 36 [...]
A ball is dropped and its displacement versus time graph is as shown (Displacement x from ground and all quantities are positive upwards). (a) Plot qualitatively velocity versus time graph. (b) Plot qualitatively acceleration versus time graph.
30
Oct
A ball is dropped and its displacement versus time graph is as shown (Displacement x from ground and all quantities are positive upwards). (a) Plot qualitatively velocity versus time graph. (b) Plot qualitatively acceleration versus time graph. Among the four graphs T) can vanish for a suitably chosen T. Which one is it? there is [...]
An object falling through a fluid is observed to have acceleration given by a=g−bv where `g= gravitational acceleration and (b) is constant. After a long time of release. It is observed to fall with constant speed. What must be the value of constant speed ?
30
Oct
An object falling through a fluid is observed to have acceleration given by a=g−bv where `g= gravitational acceleration and (b) is constant. After a long time of release. It is observed to fall with constant speed. What must be the value of constant speed ? Among the four graphs T) can vanish for a suitably [...]
Give examples of a one-dimensional motion where (a) the particle moving along positive x-direction comes to rest periodically and moves forward. (b) the particle moving along positive x-direction comes to rest periodically and moves backward.
30
Oct
Give examples of a one-dimensional motion where (a) the particle moving along positive x-direction comes to rest periodically and moves forward. (b) the particle moving along positive x-direction comes to rest periodically and moves backward. Among the four graphs T) can vanish for a suitably chosen T. Which one is it? there is only one [...]
The variation of quantity A with quantity B. plotted in the fig. Describes the motion of a particle in a straight line. (a) Quantity B may represent time. (b) Quantity A is velocity if motion is uniform. (c) Quantity A is displacement if motion is uniform (d) Quantity A is velocity if motion is uniformly accelerated.
30
Oct
The variation of quantity A with quantity B. plotted in the fig. Describes the motion of a particle in a straight line. (a) Quantity B may represent time. (b) Quantity A is velocity if motion is uniform. (c) Quantity A is displacement if motion is uniform (d) Quantity A is velocity if motion is uniformly [...]
Among the four graphs, there is only one graph for which average velocity over the time interval (0, T) can vanish for a suitably chosen T. Which one is it?
30
Oct
Among the four graphs, there is only one graph for which average velocity over the time interval (0, T) can vanish for a suitably chosen T. Which one is it? Among the four graphs T) can vanish for a suitably chosen T. Which one is it? there is only one graph for which average velocity [...]