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If Earth’s mass somehow decreased with no change in its radius, your weight would

What is the magnitude and direction of the gravitational force that acts on a person who weighs 500 N at Earth’s surface?  (G=6.67 x 10-11 and the radius of Earth is 6.357 x 106 m)

A diesel locomotive coasting at 10 km/h has an inelastic collision with a stationary flatcar. The locomotive weighs four times as much as the flatcar. How fast does the locomotive-flatcar combination move when stuck together?

A school bus slows to a stop with an average acceleration of -2.2 m/s2. Find the time that the bus takes to slow from 9.60 m/s to a stop.  (4 points)

A school bus slows to a stop with an average acceleration of -1.6 m/s2. Find the time that the bus takes to slow from 9.80 m/s to a stop.  (4 points)

Driving along the road at 100 km/h, Reckless Rick runs into Hapless Harry, who is directly in front of him and is driving at 74 km/h.  What is the impact speed–that is, the speed at which the two vehicles are approaching each other just before the collision?

A commercial jet has a mass of 5000 kg. During takeoff the thrust of its engine is 10,000 N, producing an acceleration of

Emily Easygo can paddle her canoe at 8 m/s in still water. With this speed she then paddles upstream in a river that runs downstream at 6 m/s. Her friend sitting on shore sees her speed as

An empty jug of weight W is at rest on a table. When water of weight w is poured into it, the amount of support force supplied by the table is

Aristotle believed that natural laws could be understood by