Which of the following sets of factors will affect the horizontal distance covered by an athlete in a long–jump event
A ball thrown by one player reaches the other in 2 sec. the maximum height attained by the ball above the point of projection will be about
If two bodies are projected at 30o and 60o respectively, with the same velocity, then
A body is thrown with a velocity of 9.8 m/s making an angle of 30o with the horizontal. It will hit the ground after a time
A cricketer can throw a ball to a maximum horizontal distance of 100 m. With the same effort, he throws the ball vertically upwards. The maximum height attained by the ball is
A cricketer can throw a ball to a maximum horizontal distance of 100 m. The speed with which he throws the ball is (to the nearest integer)
The horizontal range of a projectile is 4√3 times its maximum height. Its angle of projection will be
A ball is projected upwards from the top of tower with a velocity 50ms¯¹ making an angle 30° with the horizontal. The height of tower is 70 m. After how many seconds from the instant of throwing will the ball reach the ground
At what point of a projectile motion acceleration and velocity are perpendicular to each other
An object is projected at an angle of 45° with the horizontal. The horizontal range and the maximum height reached will be in the ratio.
The maximum horizontal range of a projectile is 400 m. The maximum value of height attained by it will be
The x and y coordinates of the particle at any time are x=5t-2t² and y=10t respectively where x and y are in metres and t in seconds. The acceleration of the particle at t=2s is
If the magnitude of sum of two vectors is equal to the magnitude of difference of the two vectors, the angle between these vectors is
A ship is moving Westwards with a speed of 10 km h¯¹ and a ship km South of , is moving Northwards with a speed of 10 km h¯¹ The time after which the distance between them becomes shortest, is
A projectile is fired from the surface of the earth with a velocity of 5ms¯¹ and angle 6 with the horizontal. Another projectile fired from another planet with a velocity of 3ms¯¹ at the same angle follows a trajectory which is identical with the trajectory of the projectile fired from the earth. The value of the acceleration due to gravity on the planet is (in ms¯²) is (Given g=9.8ms¯²)
A particle moves in a circle of radius 5 cm with constant speed and time period 0.2πs. The acceleration of the particle is
A missile is fired for maximum range with an initial velocity of 20 m/s . If g=10m/s² , the range of the missile is
A body is moving with velocity 30 m/s towards east. After 10 seconds its velocity becomes 40 m/s towards north. The average acceleration of the body is
A particle moves in x‐y plane according to rule x=asinωt and y=acosωt. The particle follows
A particle of mass m is projected with velocity v making an angle of 45° with the horizontal. When the particle lands on the level ground the magnitude of the change in its momentum will be
A particle starting from the origin (0,0) moves in a straight line in the (x,y). Its coordinates at a later time are (√3,3) . The path ofthe particle makes with the x‐axis an angle of
A stone tied to the end of a string of 1m long is whirled in a horizontal circle with a constant speed. If the stone makes 22 revolutions in 44 seconds, what is the magnitude and direction of acceleration of the stone?
The vector sum of two forces is perpendicular to their vector differences. In that case, the forces
A particle moves along a circle of radius (20/π)m with constant tangential acceleration. If the velocity of the particle is 80m/s at the end of the second revolution after motion has begun, the tangential acceleration is
A particle is dropped from a height and another particle B is projected in horizontal direction with speed of 5m/sec from the same height then correct statement is
