Motion in a Plane questions
631 published questions with worked solutions.
- A unit vector in the direction of resultant vector of A = -2 i + 3 j + k and B = i + 2 j - 4 k is
- A body when projected at an angle ' ' with the horizontal reaches a maximum height 'H'. The time of flight of the body will be (g...
- Two girls are standing at the ends 'A' and 'B' of a ground where AB = b. The girl at 'B' starts running in a direction...
- Two boys are standing at points A and B on ground, where distance AB = x. The boy at B starts running perpendicular to AB with...
- A boy can throw a stone up to a maximum height of 10 m. The maximum horizontal distance that the boy can throw the same stone up...
- A projectile is given an initial velocity of ( i + 2 j) m s^ -1 , where i is along the ground and j is along the vertical upward....
- A ball projected from ground at an angle of 45° just clears a wall in front. If point of projection is 4 m from the foot of wall...
- A projectile of mass M is fired so that the horizontal range is 4 km. At the highest point the projectile explodes in two parts...
- The maximum range of a bullet fired from a toy pistol mounted on a car at rest is R_0 = 40 m. What will be the acute angle of...
- The position of a projectile launched from the origin at t = 0 is given by r = (40 i + 50 j ) m at t = 2 s. If the projectile was...
- The initial speed of a bullet fired from a rifle is 630 m/s. The rifle is fired at the centre of a target 700 m away at the same...
- A person climbs up a stalled escalator in 60 s. If standing on the same but escalator running with constant velocity he takes 40...
- A vector A is rotated by a small angle radians ( 1) to get a new vector B. In that case | B - A | is:
- A body moves 6 m north, 8 m east and 10 m vertically upwards. What is its resultant displacement from the initial position?
- The position coordinates of a particle moving in the X-Y plane as a function of time t are x = 2t^2+6t+25, y = t^2+2t+1 The speed...
- A person moves 30 m north and then 20 m towards east, and finally 30 2 m in the south-west direction. The displacement of the...
- An aeroplane flies 400 m north and 300 m east, and then flies 1200 m upwards. The net displacement is
- A particle crossing the origin of co-ordinates at time t=0, moves in the xy-plane with a constant acceleration a in the...
- A body of mass m thrown horizontally with velocity v from the top of a tower of height h touches the level ground at a distance...
- A body of mass m is thrown upwards at an angle with the horizontal with velocity v. While rising up, the velocity of the mass...
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