A ball moving at +4.5 m/s along a table rolls off a table and lands on the ground 2.05m away. How long will it take before the ball hits the ground? How high was the table? (Hint; Solve for time first; then vertical (height) distance)

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Q: 4. An archer's bow allows you to store potential energy by bending the bow. This energy is released…

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Q: are

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Q: 2nrad / sec2 60 rad / sec2 O rad/sec2 n rad/ sec2

A: angular displacement in 1 min  is 2π now angular speed is (2π/15)/4 sec = 2π/60 rad/sec

Q: what about the last part? how many g's does the coaster experience? I calculate 6, but every story…

A: The acceleration at the bottom,  abottom = (vbottom)2/r Here,  vbottom = 13.66 m/s r = d/2 = 3.81 m

Q: With figure and solution, please.

A: Given as. F1 =5.08N, F2 =8.87N, F3 =3.39N, θ=60°.

Q: In the second question, why is Fdrag= mg? Is it because we don't have an acceleration that we use g…

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Q: The expression we developed in class for the angular momentum (per unit mass of the orbiting comet…

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Q: (-2/3,2) 2) (7,-7) 1)

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Q: What is the gravitational acceleration on the surface of a planet that has twice the radius and…

A: radius of planet = 2 R  density of planet =2 d

Q: This quesfion will require you to sketch out a thing. (Or at least I highly recommend you do it to…

A: Consider the free-body diagram of the package as follows.

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –