Homework Statement
A train of total mass 1.02x10^5 kg strikes a buffer that behaves like a spring of stiffness 320kN/m with an initial velocity of 0.15m/s
Calculate the maximum compression of the spring.
Homework Equations
P=mv
The Attempt at a Solution
P=mv
= 15300kgm/s...
First question seems just fine to me
Second:
mgh = 1/2 mv^2 is using an energy argument instead of suvat equations to approach the problem
mgh = gravitational potential energy
1/2mv^2 = kinetic energy
So you assume that all potential energy is converted to kinetic - unfortunately as...
Homework Statement
A block of mass 12kg slides down a slope at 5deg to the horizontal. The speed of the block at the top of the slop is 1.5ms^-1
There is a constant resistance to motion of 15N
iii) Calculate the acceleration of the block in the direction of its motion
iv) For how much...