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Questions >> JEEMAIN and NEET >> Physics >> Class11 >> Motion in a Plane

The time taken by a particle to slide down a smooth inclined plane is double the time it would take in falling down along a height equal to vertical height of the plane. The inclination of the plane with horizontal is

asked Jun 24, 2013 by meena.p

1 answer

A river is flowing with a speed of 1km/hr. A swimmer wants to go to point 'C'. Starting from 'A', he swims with a speed of 5 km/hr at an angle $\theta$ w.r.t the river. If $AB=BC=400 m$ . Then

asked Jun 24, 2013 by meena.p

1 answer

Two fixed frictionless inclined planes making angle $30 ^{\circ}$ and $60 ^{\circ}$ with the vertical are shown. Two blocks A and B are placed on the two planes. What is the relative vertical acceleration of A with respect to B

asked Jun 24, 2013 by meena.p

1 answer

A player kicks a football at an angle of $30^{\circ}$ with horizontal and initial velocity of 19.6m/s. A second player standing at a distance of 20.95m from the first player and in the direction of the kick,starts running to meet the ball, at the instant it is kicked. How far and how fast must he run in order to catch the ball before it hits the ground ?

asked Jun 24, 2013 by meena.p

1 answer

Rain is falling at the speed of 4 km/hr from west direction making an angle $30^{\circ}$ with vertical. At what speed should a man walk eastward, such that he has to hold his umbrella vertically to protect himself

asked Jun 23, 2013 by meena.p

1 answer

A plane is flying horizontally at an attitude of 490 m with a velocity of 80 m/s. A bomb is dropped from it. After how much time does the bomb reach the ground ?

asked Jun 21, 2013 by meena.p

1 answer

A man crosses the river in shortest time at an angle $\theta=60 ^{\circ}$ to the direction of flow of water. If the speed of water is $v_w=4\; km/hr$ find the speed of man.

asked Jun 20, 2013 by meena.p

1 answer

At what departure angle should a body be projected so that the maximum vertical height attained by a projectile is equal to the horizontal range ?

asked Jun 20, 2013 by meena.p

1 answer

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