(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

1. A boy with a mass of 50kg jumps off a 30kg boat, causing the boat to move to the right at 2 m/sec. What did the boy jump with a velocity of?

a.-1.2 m/sec

b.3.3 m/sec

c.1.1 m/sec

d.0.2 m/sec

e.-3.3 m/sec

2. A 2kg cart moving in a straight line hits a piece of modeling clay that has a mass of 1kg and is at rest. After the collision, the cart and clay stick together and move at 1m/sec to the left. The initial velocity of the cart is ___m/sec to the left.

a.1

b.1.5

c.2

d.2.5

e.-0.33

2. Relevant equations

m1*v2/r=g*m1m2/r2.....all of those numbers are subscripts

3. The attempt at a solution

1. v=sq. root of Gm/r

v=(6.67*10^-11)20/2=

1.334*10 to the second

2. 1/3

I am beyond confused....physics does not click in my head at all.

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Calculation of Velocity in reference to circular motion

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