A lift is moving down with acceleration a. A man in the lift drops a ball inside the lift. The acceleration of the ball as observed by the man in the lift and a man standing stationary on the ground are respectively?

Anonymous User Physics IIT 13 Aug, 2018 492 views

A projectile can have the same range R for two angles of projection. If t1 and t2 be the time of flights in the two cases, then the product of the two time of flights is proportional to?

Kavita Singh IIT Physics 10 Aug, 2018 117 views

A particle is moving eastwards with a velocity of 5 m/s. In 10 s the velocity changes to 5 m/s northwards. The average acceleration in this time is

Anonymous User IIT Physics 10 Aug, 2018 604 views

A ball is thrown from a point with a speed v0 at an angle of projection . From the same point and at the same instant a person starts running with a constant speed  to catch the ball. Will the person be able to catch the ball? If yes, what should be the angle of projection?

Anonymous User IIT Physics 10 Aug, 2018 227 views

Which of the following statements is false for a particle moving in a circle with a constant angular speed?

Anonymous User IIT Physics 10 Aug, 2018 79 views

A projectile can have the same range R for two angles of projection. If T1 and T2 be the time of flights in the two cases, then the product of the two time of flights is directly proportional to?

Anonymous User IIT Physics 10 Aug, 2018 3517 views

The co­ordinates of a moving particle at any time t are given by  and  . The speed of the particle at time t is given by

Anonymous User IIT Physics 10 Aug, 2018 93 views

A boy playing on the roof of a 10 m high building throws a ball with a speed of 10 m/s at an angle of 30° with the horizontal. How far from the throwing point will the ball be at the height of 10 m from the ground ?

Anonymous User IIT Physics 10 Aug, 2018 833 views

Two forces are such that the sum of their magnitudes is 18 N and their resultant is 12 N which is perpendicular to the smaller force. Then the magnitudes of the forces are?

Anonymous User IIT Physics 10 Aug, 2018 79 views

A particle located at x = 0 at time t = 0, starts moving along the positive x­-direction with a velocity v that varies as

.The displacement of the particle varies with time as

Anonymous User IIT Physics 09 Aug, 2018 3083 views

What amount of CaO is produced by 1g of calcium?

Anonymous User Chemistry 08 Aug, 2018 244 views

Calculate the volume of CO2 obtained at STP when 3.5 g of K2CO3 reacts with excess of dil HCl?

Anonymous User Chemistry 08 Aug, 2018 97 views