- #1
teme92
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- 2
Homework Statement
Using the Principle of Conservation of Energy, solve:
A block of mass 5kg is released from rest and slides down a distance D
down a smooth plane inclined at 30◦ to the horizontal. It then strikes a
spring compressing it 10cm before it begins to move up the plane. If the
spring constant is 980N/m and g = 9.8m/s2, find D.
Homework Equations
mgh=0.5(k)(x^2)
d=hcos(theta)
The Attempt at a Solution
Using mgh=0.5(k)(x^2)
5(9.8)h=0.5(980)(.01)^2
and got h on its own for:
h=0.001
Then I used d=hcos(theta) to get:
d= (.001)cos(30)
d= 8.66×10^-4
Is this the correct way of doing the question? Thanks for any advice.