c The cart then travels to point B and then around the circular track to C

# C the cart then travels to point b and then around

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leaves the launch catapult (neglect friction). c) The cart then travels to point B and then around the circular track to C. Neglecting friction, calculate the speed at point C. d) Calculate the centripetal acceleration at point C. e) Calculate the force that the seat exerts on a 75 kg person when the cart is at point C. Include a free-body diagram as part of your solution. 7. Tug the Macaroni penguin is having fun lifting Mmmm the Adelie penguin chick from the floor of his igloo to the ceiling as shown in the diagram. The floor and ceiling are 5.00 m apart. Mmmm’s mass is 2.50 kg. Tug’s mass is 5.30 kg. a) Tug lifts Mmmm from point A to point B. Calculate the change in gravitational potential energy of Mmmm. b) Tug lifts Mmmm from point A to point C. Calculate the change in gravitational potential energy of Mmmm. c) Tug ties a seal gut rope tight from point A to point B and then pulls himself up the vertical rope from point A to point B at a constant speed of 2.20 m/s. Calculate Tug’s power. 5 m 3 m 0 10000 20000 30000 40000 0 1 2 3 4 5 6 7 F (N) Distance (m) #### You've reached the end of your free preview.

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• Fall '16
• terry bridge
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