A 4.0 kg box slides with an initial speed of 3.0 towards a spring on a frictionless horizontal surface. When S
the box hits the spring, the spring compresses by 0.30 m.
wa
M
m
What is the spring constant?

If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10

In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.

Determine the maximum r-value of the polar equation r =3+3 cos 0