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18 Questions

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PHYS UN1201: Final Exam Problem 1

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Questions and Answers

What is the initial height of the chair above the ground on the Power Tower ride?

387 m (correct)

300 m

360 m

400 m

What is the velocity of the ball when it catches up with the chair?

72.0 m/s

108.0 m/s

36.0 m/s (correct)

0 m/s

What is the angle of the roof with respect to the horizontal in Problem 2?

20◦ (correct)

40◦

10◦

30◦

What is the speed of the rain when it leaves the roof in Problem 2?

15 m/s Signup and view all the answers

What is the normal force exerted by the truck on the wood crate in Problem 3?

1764 N Signup and view all the answers

What is the minimum coefficient of static friction required for the crate to stay on the truck in Problem 3?

0.90 Signup and view all the answers

What is the radius of the larger pulley?

20 cm Signup and view all the answers

What is the density of the water in the tank?

1000 kg/m3 Signup and view all the answers

What is the mass of the block attached to the spring?

0.5 kg Signup and view all the answers

What is the initial displacement of the block from its equilibrium position?

10.0 cm Signup and view all the answers

What is the volume of the rectangular block of balsa wood?

0.16 m3 Signup and view all the answers

What is the speed of the block when it passes through the equilibrium position?

1.0 m/s Signup and view all the answers

What is the compression distance of the spring after the collision?

2.0 cm Signup and view all the answers

What is the mass of the block in problem 4?

1 kg Signup and view all the answers

What is the speed of car A before the collision in problem 5?

5.0 m/s Signup and view all the answers

What is the direction of motion of car B after the collision in problem 5?

To the right Signup and view all the answers

What type of collision occurs in problem 5?

Elastic collision Signup and view all the answers

What is the purpose of the pulleys in problem 6?

To reduce friction in the axle Signup and view all the answers