attained by the stone? (18 m/s) A satellite is located 1000 km above the surface of the Earth. How long would it take for the satellite to complete one orbit of the Earth? What is its speed? (6295 s, 7357 m/s)
attained by the stone? (18 m/s) A satellite is located 1000 km above the surface of the Earth. How long would it take for the satellite to complete one orbit of the Earth? What is its speed? (6295 s, 7357 m/s)
Transcribed Image Text:1. A spherical stone with a mass of 1.25 kg is attached to one end of a 90 cm string and is the swung in a horizontal
circle. If the maximum force that the string can withstand before breaking is 450 N, what maximum speed can be
attained by the stone? (18 m/s)
2.
A satellite is located 1000 km above the surface of the Earth. How long would it take for the satellite to complete
one orbit of the Earth? What is its speed? (6295 s, 7357 m/s)
3. Jupiter has a mass of 1.90 x 1027 kg and a radius of orbit of 7.78 x 10¹¹ m. Saturn has a mass of 5.67 x 1026 kg and
a radius of orbit of 1.43 x 10¹2 m. What is the gravitational force of attraction between Jupiter and Saturn when
one of the planets is on the exact opposite side of the Sun from the other planet? (1.47 x 10¹9 N)
4.
A hill has a radius of curvature of 60 m. With what maximum speed can a car go over the hill without leaving the
ground? (24.3 m/s)
5.
A satellite is orbiting the Earth with a period of 60 h. Determine the height of the satellite above the Earth's
surface. (7.41 x 107 m)
6.
Two students with masses of 65 kg and 74 kg are standing 3.00 m apart. What is the gravitational force of
attraction between the students? (3.56 x 108 N)
7.
What would be the acceleration due to gravity on the Earth if Earth's mass was tripled and the radius was
doubled? (7.36 m/s²)
8.
An object with a mass of 5.00 kg is swung 22 times in 57.5 s. If the diameter of the circle is 6.00 m, what is the
tension in the rope? (86.7 N)
9.
A merry-go-round is being turned with a frequency of 0.25 Hz. A child, with a mass of 40 kg, is sitting on the floor
of the merry-go-round which has a coefficient of friction of 0.35. What is the maximum distance from the centre
where the child can sit without being thrown off the merry-go-round? Explain why the child would be thrown
off. (1.39 m)
10. Two masses, 2000 kg and 5000 kg, are placed 20 m apart. A third mass of 500 kg is placed in between the two
large masses a distance of 5.0 m from the larger mass. What is the force acting on the 500 kg mass? (6.37 x 10°
N toward the 5000 kg mass)
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