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In: Physics

Study Guide 1 1. A child sitting 1.70 m from the center of a merry-go-round moves...

Study Guide 1

1. A child sitting 1.70 m from the center of a merry-go-round moves with a speed of 1.85 m/s, Calculate the centripetal acceleration of the child and the net horizontal force exerted on the child. (mass m = 22.5 kg )

2. A horizontal force of 320 NN is exerted on a 2.0-kg ball as it rotates (at arm's length) uniformly in a horizontal circle of radius 0.90 m, Calculate the speed of the ball.

3. Two objects attract each other gravitationally with a force of 2.3×10−10 N when they are 0.65 mm apart. Their total mass is 4.6 kg, Find their individual masses.

4. Calculate the speed of a satellite moving in a stable circular orbit about the Earth at a height of 4840 km

5. A satellite of mass 5430 kg orbits the Earth and has a period of 6570 s . Determine the radius of its circular orbit, the magnitude of the Earth's gravitational force on the satellite, and the altitude of the satellite.

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