Chapter 10 – COM, Momentum and Collision
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A bomb explodes in air when it has a horizontal speed of 10m/s. It breaks into two pieces A and B of mass ratio 1:2. If A goes vertically up at a speed of 40m/s , the speed of B is
22
Oct
A bomb explodes in air when it has a horizontal speed of 10m/s. It breaks into two pieces A and B of mass ratio 1:2. If A goes vertically up at a speed of 40m/s , the speed of B is A bomb explodes in air when it has a horizontal speed of 10m/s. It [...]
At high altitude , a body explodes at rest into two equal fragments with one fragment receiving horizontal velocity of 10m/s. Time taken by the two radius vectors connecting of explosion to fragments to make 90^∘ is
22
Oct
At high altitude , a body explodes at rest into two equal fragments with one fragment receiving horizontal velocity of 10m/s. Time taken by the two radius vectors connecting of explosion to fragments to make 90^∘ is a body explodes at rest into two equal fragments with one fragment receiving horizontal velocity of 10m/s. Time [...]
A shell is fired from a cannon with a velocity v(m/sec.) at an angle θ with the horizontal direction. At the highest point in its path it explodes into two pieces of equal mass. One of the pieces retraces its path to the cannon and the speed (in m/sec.) of the other piece immediately after the explosion is
22
Oct
A shell is fired from a cannon with a velocity v(m/sec.) at an angle θ with the horizontal direction. At the highest point in its path it explodes into two pieces of equal mass. One of the pieces retraces its path to the cannon and the speed (in m/sec.) of the other piece immediately after [...]
A body of mass 50kg is projected vertically upward with velocity of 100m/s. After 5s this body breaks into 20kg and 30kg. If the 20kg piece travels upwards with 150m/s, then the velocity of other block will be
22
Oct
A body of mass 50kg is projected vertically upward with velocity of 100m/s. After 5s this body breaks into 20kg and 30kg. If the 20kg piece travels upwards with 150m/s, then the velocity of other block will be A body of mass 50kg is projected vertically upward with velocity of 100m/s. After 5s this body [...]
A shell of mass 20kg at rest explodes into two fragments whose masses are in the ratio 2:3. The smaller fragment moves with a velocity of 6m/s. The kinetic energy of the larger fragment is
22
Oct
A shell of mass 20kg at rest explodes into two fragments whose masses are in the ratio 2:3. The smaller fragment moves with a velocity of 6m/s. The kinetic energy of the larger fragment is A shell of mass 20kg at rest explodes into two fragments whose masses are in the ratio 2:3. The smaller [...]
A shell of mass m moving with velocity v suddenly breaks into 2 pieces. The part having mass m /4 remains stationary. The velocity of the other shell will be
22
Oct
A shell of mass m moving with velocity v suddenly breaks into 2 pieces. The part having mass m /4 remains stationary. The velocity of the other shell will be A shell of mass m moving with velocity v suddenly breaks into 2 pieces. The part having mass m /4 remains stationary. The velocity of [...]
A ball of mass m falls vertically to the ground from a height h1 and rebound to a height h1 and rebound to a height h2. The change in momentum of the ball on striking the ground is.
22
Oct
A ball of mass m falls vertically to the ground from a height h1 and rebound to a height h1 and rebound to a height h2. The change in momentum of the ball on striking the ground is. A ball of mass m falls vertically to the ground from a height h1 and rebound to [...]
A particle of mass m is executing uniform circular motion on a path of radius r. If p is the magnitude of its linear momentum, then the radial force acting on the particle is
22
Oct
A particle of mass m is executing uniform circular motion on a path of radius r. If p is the magnitude of its linear momentum, then the radial force acting on the particle is A particle of mass m is executing uniform circular motion on a path of radius r. If p is the magnitude [...]
A body of mass 0.5kg is projected under the gravity with a speed of 98m/s at an angle of 30^∘ with the horizontal. The change in momentum (in magnitude) of the body when it strikes the ground is
22
Oct
A body of mass 0.5kg is projected under the gravity with a speed of 98m/s at an angle of 30^∘ with the horizontal. The change in momentum (in magnitude) of the body when it strikes the ground is A body of mass 0.5kg is projected under the gravity with a speed of 98m/s at an [...]
If the kinetic energy of a body increases by 0.1% the percent increase of its momentum will be
22
Oct
If the kinetic energy of a body increases by 0.1% the percent increase of its momentum will be If the kinetic energy of a body increases by 0.1% the percent increase of its momentum will be October 22, 2020 Category: Cengage NEET by C.P Singh , Chapter 10 - COM, Momentum and Collision , Part [...]