Volume 1

A particle starts from rest with uniform acceleration a. Its velocity after n second is v. The displacement of the body in the last two second is A particle starts from rest with uniform acceleration a. Its velocity after n second is v. The displacement of the body in the last two second is October [...]

A stone is thrown vertically upwards with an initial speed u from the top of a tower, reaches the ground with a speed 3u. The height of the tower is : A stone is thrown vertically upwards with an initial speed u from the top of a tower reaches the ground with a speed 3u. [...]

Two balls of equal masses are thrown upwards, along the same vertical direction at an interval of 2 seconds, with the same initial velocity of 40m/s. Then these collide at a height of (Take g=10m/s^2). along the same vertical direction at an interval of 2 seconds Two balls of equal masses are thrown upwards with [...]

A stone is dropped into a well in which the level of water is h below the top of the well. If v is velocity of sound, the time T after which the splash is heard is given by A stone is dropped into a well in which the level of water is h below [...]

A ball is dropped from the top of a building. The ball takes 0.5s to fall past the 3m height of a window some distance from the top of the building. If the speed of the ball at the top and at the bottom of the window are VT and VB respectively, then (g = [...]

A body starts from rest and is uniformly accelerated for 30 s. The distance travelled in the first 10 s is x1, next 10 s is x2 and the last 10 s is x3. Then, x1:x2:x3 is A body starts from rest and is uniformly accelerated for 30 s. The distance travelled in the first [...]

Two inclined planes `OA` and `OB` of inclinations `alpha` and `beta` equal to `30 degree` are as shown in the figure. A particle is projected at an angle of `90 degree` with plane `OA` from point `A` and it strikes the plane `OB` at point `B` normally. Then find the speed of projection `u` in [...]

Trajectory of two particles projected from origin with speeds v1 and v2 at angles θ1 and θ2 with positive x- axis respectively are as shown in the figure. Given that (g = −10 m/s^2(jˆ)). Choose the correct option related to diagram. 40m) ? Take g = 10 m/s^2 With what minimum speed must a particle [...]

Two particles projected vertically upward from points (0,0) and (1,0)m with uniform velocity 10 m/s and v m/s respectively, as shown in the figure. It is found that they collide after time t in space. Time t is 15(x−−√−1). Calculate x 0) and (1 0)m with uniform velocity 10 m/s and v m/s respectively as [...]

A large rectangular box moves vertically downward with an acceleration a. A toy gun fixed at A and aimed towards C fires a particle P. A large rectangular box moves vertically downward with an acceleration a. A toy gun fixed at A and aimed towards C fires a particle P. October 18, 2020 Category: Arihant [...]