Cengage NEET by C.P Singh
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 [...]
If kinetic energy of a body is increased by 300%, its momentum will increase by
22
Oct
If kinetic energy of a body is increased by 300%, its momentum will increase by If kinetic energy of a body is increased by 300% its momentum will increase by October 22, 2020 Category: Cengage NEET by C.P Singh , Chapter 10 - COM, Momentum and Collision , Part 1 ,
Two bodies with kinetic energies in the ratio 4:1 are moving with equal linear momentum. The ratio of their masses is
22
Oct
Two bodies with kinetic energies in the ratio 4:1 are moving with equal linear momentum. The ratio of their masses is Two bodies with kinetic energies in the ratio 4:1 are moving with equal linear momentum. The ratio of their masses is October 22, 2020 Category: Cengage NEET by C.P Singh , Chapter 10 - [...]
A wooden plank of mass M and length L is floating in still water. A persons of mass m starts at one end of the plank and reaches to other end other end in time t0, moving with a constant speed. Choose the correct option. (i) The speed of the person as seen from the ground is smaller than L/t0. (ii) The speed of the plank as seen from the ground is (m/m+M)L/t0. (iii) The speed of the plank as seen from the ground is (M/m+M)L/t0. (iv) The total K.E. of the system is 1/2(m+M)(Lt/0)^2.
22
Oct
A wooden plank of mass M and length L is floating in still water. A persons of mass m starts at one end of the plank and reaches to other end other end in time t0, moving with a constant speed. Choose the correct option. (i) The speed of the person as seen from the [...]
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A rod of length is 3m and its mass per unit length is directly proportional to distance x from one end the centre of gravity of the rod from that end will be at ,
A wooden plank of mass M and length L is floating in still water. A persons of mass m starts at one end of the plank and reaches to other end other end in time t0 ,
Two particles A and B of masses 2m and m are placed on a smooth surface at separation d. They move towards each other due to the mutual attractive force. (i) The particles will meet at distance d/3 from the initial position of mass 2m. (ii) The speed of A will be half of speed of B until the particles collide (excluding the initial speed). (iii) The distance covered by B is always double that covered by A until the particles collide. (iv) The velocity of center of mass is always zero.
22
Oct
Two particles A and B of masses 2m and m are placed on a smooth surface at separation d. They move towards each other due to the mutual attractive force. (i) The particles will meet at distance d/3 from the initial position of mass 2m. (ii) The speed of A will be half of speed [...]
A boy (massof40kg) is standing at one end of a boat (mass of 60 kg) in still water. The length of the boat is 10m and the boy takes 2s to reach at other end of boat moving with constant speed. Assuming no friction between the boat and the water. (i) The distance covered by the boat is 4m (ii) The distance covered by the boy with respect to the ground is 6m. (iii) The velocity of the boy with respect to the ground is
22
Oct
A boy (massof40kg) is standing at one end of a boat (mass of 60 kg) in still water. The length of the boat is 10m and the boy takes 2s to reach at other end of boat moving with constant speed. Assuming no friction between the boat and the water. (i) The distance covered by [...]
A boy of mass 40kg stands on a rail road car of mass 60kg, moving with velocity 10m/s. Now , the boy begins to run with velocity 5m/s , with respect to the car , in the same direction , the velocity of the car will be
22
Oct
A boy of mass 40kg stands on a rail road car of mass 60kg, moving with velocity 10m/s. Now , the boy begins to run with velocity 5m/s , with respect to the car , in the same direction , the velocity of the car will be A boy of mass 40kg stands on a [...]