- #1
issacnewton
- 1,000
- 29
Hi
here's the problem i need help with.
a block is attached to a spring and performs SHM along a horizontal straight line. a piece of
putty is dropped vertically so that it sticks to the block when it lands on it. refer to the attached figure.
Discuss qualitatively the effects of this, if any, on the amplitude and the period of oscillation in the following two separate cases in which the putty lands on the block.
a) when the block moves past its equilibrium position
b) when the block is momentarily at rest at maximum displacement.
now here's what i think. since the putty sticks to the block, its an inelastic collision.
so the energy is not conserved. energy is lost in heat. now E=(1/2)k A^2 when the block is at maximum displacement, where A is the amplitude. since spring is not changed, k will not change, so for E to decrease, A must decrease. so as a result amplitude will decrease.
is this correct ? also i am not able to say what will happen to the period and what would be the difference between questions a) and b).
please help
Issace n
here's the problem i need help with.
a block is attached to a spring and performs SHM along a horizontal straight line. a piece of
putty is dropped vertically so that it sticks to the block when it lands on it. refer to the attached figure.
Discuss qualitatively the effects of this, if any, on the amplitude and the period of oscillation in the following two separate cases in which the putty lands on the block.
a) when the block moves past its equilibrium position
b) when the block is momentarily at rest at maximum displacement.
now here's what i think. since the putty sticks to the block, its an inelastic collision.
so the energy is not conserved. energy is lost in heat. now E=(1/2)k A^2 when the block is at maximum displacement, where A is the amplitude. since spring is not changed, k will not change, so for E to decrease, A must decrease. so as a result amplitude will decrease.
is this correct ? also i am not able to say what will happen to the period and what would be the difference between questions a) and b).
please help
Issace n