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1) An unstretched spring with spring constant 36 N cm is suspended from the ceiling. A...

1) An unstretched spring with spring constant 36 N cm is suspended from the ceiling. A 3.0 kg mass is attached to the spring and let fall. How far does it stretch the spring?

(a)0.4 cm, (b) 1.6 cm, (c) 4.5 cm , (d)9.3 cm.

2) What are the fundamental units of G, the Gravitational constant?

(a) m2 Nkg2 (b) m2N kg2 (c) kg2N m2 (d) kg2N m2

3) How far can a runner running at 8.2 m s run in the time it takes a rock to fall from rest 22 meters?

(a) 12 m (b) 2.7 m (c) 37 m (d) 17 m

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