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A spring with k=40.0 N/m is at the base of a frictionless 30.0 degree inclined plane. A 0.50-kg object is pressed against the
2 answers
857 views
A top fuel drag racer with a mass of 500.0 kg completes a quarter-mile (402m) drag race in a time of 4.2s starting from rest.
1 answer
754 views
A motorist driving a 1200-kg car on level ground accelerates from 20.0 m/s to 30.0 m/s in a time of 5.0s. Neglecting friction
1 answer
1,302 views
You shoot a 51-g pebble straight up with a catapult whose spring constant is 320N/m. The catapult is initially stretched by
1 answer
1,985 views
The length of a spring increases by 7.2 cm from its relaxed length when a mass of 1.4 kg is hanging in equilibrium from the
2 answers
1,984 views
A block of wood is compressed 2.0 nm when inward forces of magnitude 120N are applied to it on two opposite sides. (a) Assuming
1 answer
1,356 views
You are on the Moon and would like to send a probe into space so that it does not fall back to the surface of the Moon. What
2 answers
527 views
Bruce stands on a bank beside a pond, grasps the end of a 20.0-m-long rope attatched to a nearby tree and swings out to drop
2 answers
1,859 views
