Chapter 4 – Motion in 2 Dimension
Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 4 - Motion in 2 Dimension
A car is moving horizontally along a straight line with a uniform velocity of 25ms^−1. A projectile is to be fired from this car in such a way that it will return to it after it has moved 100m. The speed of the projection must be.
19
Oct
A car is moving horizontally along a straight line with a uniform velocity of 25ms^−1. A projectile is to be fired from this car in such a way that it will return to it after it has moved 100m. The speed of the projection must be. A particle starts from the origin with a velocity [...]
A projectile is given an initial velocity of i ^+2j ^. The cartesian equation of its path is (g = 10 ms^−2).
19
Oct
A projectile is given an initial velocity of i ^+2j ^. The cartesian equation of its path is (g = 10 ms^−2). A projectile is given an initial velocity of i ^+2j ^. The cartesian equation of its path is (g = 10 ms^−2). October 19, 2020 Category: Cengage JEE Mains Physics by B.M Sharma [...]
A projectile is thrown in the upward direction making an angle of 60^∘ with the horizontal direction with a velocity of 150 ms^−1. Then the time after which its inclination with the horizontal is 45^∘ is
19
Oct
A projectile is thrown in the upward direction making an angle of 60^∘ with the horizontal direction with a velocity of 150 ms^−1. Then the time after which its inclination with the horizontal is 45^∘ is A particle starts from the origin with a velocity of 10ms^−1 and moves with a constant acceleration till the [...]
The angular velocity of a particle moving in a circle of radius 50 cm is increased in 5 min from 100 revolutions per minute to 400 revolutions per minute. Find the tangential acceleration of the particle.
05
Sep
The angular velocity of a particle moving in a circle of radius 50 cm is increased in 5 min from 100 revolutions per minute to 400 revolutions per minute. Find the tangential acceleration of the particle. A particle is projected with certain velocity at an angle α above the horizontal from the foot of an [...]
A body is moving in a circle with a speed of 1ms^−1. This speed increases at a constant rate of 2ms^−1 every second. Assume that the radius of the circle described is 25 m. The total acceleration of the body after 2s is:
05
Sep
A body is moving in a circle with a speed of 1ms^−1. This speed increases at a constant rate of 2ms^−1 every second. Assume that the radius of the circle described is 25 m. The total acceleration of the body after 2s is: A particle is projected with certain velocity at an angle α above [...]
In fig. the time taken by the projectile to reach from A to B is t. Then the distance AB is equal to
05
Sep
In fig. the time taken by the projectile to reach from A to B is t. Then the distance AB is equal to In fig. the time taken by the projectile to reach from A to B is t. Then the distance AB is equal to September 5, 2020 Category: Cengage JEE Mains Physics by [...]
A particle is projected with certain velocity at an angle α above the horizontal from the foot of an inclined plane of inclination 30 . If the particle strikes the plane normally then α is equal to
05
Sep
A particle is projected with certain velocity at an angle α above the horizontal from the foot of an inclined plane of inclination 30 . If the particle strikes the plane normally then α is equal to A particle is projected with certain velocity at an angle α above the horizontal from the foot of [...]
The horizontal range and maximum height attained by a projectile are R and H , respectively. If a constant horizontal acceleration a = g/4 is imparted to the projectile due to wind, then its horizontal range and maximum height will be
05
Sep
The horizontal range and maximum height attained by a projectile are R and H , respectively. If a constant horizontal acceleration a = g/4 is imparted to the projectile due to wind, then its horizontal range and maximum height will be respectively. If a constant horizontal acceleration a = g/4 is imparted to the projectile [...]
A body of mass m is projected horizontally with a velocity v from the top of a tower of height h and it reaches the ground at a distance x from the foot of the tower. If a second body of mass 2m is projected horizontally from the top of a tower of height 2h, it reaches the ground at a distance 2x from the foot of the tower. The horizontal velocity of the second body is-
05
Sep
A body of mass m is projected horizontally with a velocity v from the top of a tower of height h and it reaches the ground at a distance x from the foot of the tower. If a second body of mass 2m is projected horizontally from the top of a tower of height 2h, [...]
Two balls A and B are thrown with speeds u and u/2, respectively. Both the balls cover the same horizontal distance before returning to the plane of projection. If the angle of projection of ball B is 15 with the horizontal, then the angle of projection of A is:
05
Sep
Two balls A and B are thrown with speeds u and u/2, respectively. Both the balls cover the same horizontal distance before returning to the plane of projection. If the angle of projection of ball B is 15 with the horizontal, then the angle of projection of A is: respectively. Both the balls cover the [...]