explain the answers please! Instructions You may use a calculator on this exam.

Question

explain the answers please!

Instructions You may use a calculator on this exam. Partial credit may be given is you your wor show any of the pages become detached. True or False Mark each statement as true or false (1 point each) 1. (T/F) If you are finding the center of mass in the x direction, it must be the point along the x axis which has equal amounts of mass on either side of it. 2. (T F) If a textbook is dropped on a moving skateboard, the skateboard and textbook together will travel at a smaller speed than the skateboard alone. 3. (T/F) A torque is a type of energy 4. (T /F) A rotating object with a larger angular velocity will have a shorter period than an 4. (T/F) A rotating object with a larger angul object that has a smaller angular velocity 5. (T/F) The more fuel a rocket burns, the greater its change in velocity. Multiple choice Citcle the correct option (1 nnint f

Explanation / Answer

1) T

wherever center of mass exists, either side of masses mmust be same.

2) T

Assording to conservation of momentum the speed of both objects decreases.

3) F

Torque has dimesions same as energy. but it is not energy.

4) T

T = 2*pi/w. so, if w is greater, T is smaller.

5) T

When more fule comes out, the increase in momentum of the rocket is more.

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