Question Answers
Sahay Sir > Question Answers
A bullet fired into a fixed target loses half of its velocity after penetrating 3cm. How much further it will penetrate before coming to rest assuming that it faces constant resistance to motion?
27
Oct
A bullet fired into a fixed target loses half of its velocity after penetrating 3cm. How much further it will penetrate before coming to rest assuming that it faces constant resistance to motion? A bullet fired into a fixed target loses half of its velocity after penetrating 3cm. How much further it will penetrate before [...]
A mass ‘m’ moves with a velocity ‘v’ and collides inelastically with another identical mass . After collision the 1st mass moves with velocity v/3–√ in a direction perpendicular to the initial direction of motion. Find the speed of the 2nd mass after collision.
27
Oct
A mass ‘m’ moves with a velocity ‘v’ and collides inelastically with another identical mass . After collision the 1st mass moves with velocity v/3–√ in a direction perpendicular to the initial direction of motion. Find the speed of the 2nd mass after collision. A force acts on a 2 kg object so that its [...]
A block of mass 0.50kg is moving with a speed of 2.00cm^−1 can a smooth surface . It strikes another mass of 1.00kg and then they move together as a single body . The energy loss during the collision is
27
Oct
A block of mass 0.50kg is moving with a speed of 2.00cm^−1 can a smooth surface . It strikes another mass of 1.00kg and then they move together as a single body . The energy loss during the collision is A force acts on a 2 kg object so that its position is given as [...]
A bomb of mass 16kg at rest explodes into two pieces of masses 4 kg and 12 kg. The velocity of the 12 kg mass is 4ms^−1. The kinetic energy of the other mass is
27
Oct
A bomb of mass 16kg at rest explodes into two pieces of masses 4 kg and 12 kg. The velocity of the 12 kg mass is 4ms^−1. The kinetic energy of the other mass is A bomb of mass 16kg at rest explodes into two pieces of masses 4 kg and 12 kg. The velocity [...]
An athlete in the Olympic games covers a distance of 100m in 10s. His kinetic energy can be estimated to be in the range
27
Oct
An athlete in the Olympic games covers a distance of 100m in 10s. His kinetic energy can be estimated to be in the range An athlete in the Olympic games covers a distance of 100m in 10s. His kinetic energy can be estimated to be in the range October 27, 2020 Category: Chapter 4 - [...]
Statement -1: Two particles moving in the same direction do not lose all their energy in a completely inelastic collision. Statement -2 : Principle of conservation of momentum holds true for all kinds of collisions.
27
Oct
Statement -1: Two particles moving in the same direction do not lose all their energy in a completely inelastic collision. Statement -2 : Principle of conservation of momentum holds true for all kinds of collisions. A force acts on a 2 kg object so that its position is given as a function of time as [...]
At time t=0s particle starts moving along the x− axis. If its kinetic energy increases uniformly with time ‘t’, the net force acting on it must be proportional to
27
Oct
At time t=0s particle starts moving along the x− axis. If its kinetic energy increases uniformly with time ‘t’, the net force acting on it must be proportional to At time t=0s particle starts moving along the x− axis. If its kinetic energy increases uniformly with time 't' the net force acting on it must [...]
This question has statement I and statement II. Of the four choices given after the statements, choose the one that best describes the two statements. Statement I: A point particle of mass m moving with speed v collides with stationary point particle of mass M. If the maximum energy loss possible given as f(1/2mv^2) then f=(m/M+m) Statement II: Maximum energy loss occurs when the particles get stuck together as a result of the collision.
27
Oct
This question has statement I and statement II. Of the four choices given after the statements, choose the one that best describes the two statements. Statement I: A point particle of mass m moving with speed v collides with stationary point particle of mass M. If the maximum energy loss possible given as f(1/2mv^2) then [...]
When a rubber band is stretched by a distance x , if exerts restoring force of magnitude F=ax+bx^2 where a and b are constant . The work in stretching the unstretched rubber band by L is
27
Oct
When a rubber band is stretched by a distance x , if exerts restoring force of magnitude F=ax+bx^2 where a and b are constant . The work in stretching the unstretched rubber band by L is if exerts restoring force of magnitude F=ax+bx^2 where a and b are constant . The work in stretching the [...]
A particle of mass m moving in the x direction with speed 2v is hit by another particle of mass 2m moving in they y direction with speed v. If the collision is perfectly inelastic, the percentage loss in the energy during the collision is close to :
27
Oct
A particle of mass m moving in the x direction with speed 2v is hit by another particle of mass 2m moving in they y direction with speed v. If the collision is perfectly inelastic, the percentage loss in the energy during the collision is close to : A particle of mass m moving in [...]