Volume 2
A particle is thrown upwards from ground. It experiences a constant air resistance which can produce a retardation of 2 ms^−2 opposite to the direction of velocity of particle. The ratio of time of ascent to time of descent is (g= 10 m/s^2 )
18
Oct
A particle is thrown upwards from ground. It experiences a constant air resistance which can produce a retardation of 2 ms^−2 opposite to the direction of velocity of particle. The ratio of time of ascent to time of descent is (g= 10 m/s^2 ) A particle has a velocity u towards east at t=0. Its [...]
A balloon is moving upwards with velocity 10m/s. It releases a stone which comes down to the ground in 11s. The height of the balloon from the ground at the moment when the stone was dropped is (g=10m/s^2)
18
Oct
A balloon is moving upwards with velocity 10m/s. It releases a stone which comes down to the ground in 11s. The height of the balloon from the ground at the moment when the stone was dropped is (g=10m/s^2) A particle has a velocity u towards east at t=0. Its acceleration is towards west and 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
18
Oct
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 :
18
Oct
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).
18
Oct
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
18
Oct
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 = 9.8m/s^)
18
Oct
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
18
Oct
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 [...]
A particle has a velocity u towards east at t=0. Its acceleration is towards west and is constant. Let xA and xB be the magnitude of displacements in the first 10 seconds and the next 10 seconds. Then,
18
Oct
A particle has a velocity u towards east at t=0. Its acceleration is towards west and is constant. Let xA and xB be the magnitude of displacements in the first 10 seconds and the next 10 seconds. Then, A particle has a velocity u towards east at t=0. Its acceleration is towards west and is [...]