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If an astronaut weighs 150 Newtons on Mercury (where the acceleration due to gravity is 3.95 m/sec2), how much does she weigh on earth?
7.04
1411.2 N
3381
184.5 lbs
15.65 slus
5.12 N
372.15 N
1327.7 lbs
If a box of cargo bound for space exploration weighs 2,455 pounds on earth, what will its weight be on the moon? (The acceleration due to gravity on the moon is 5.3 ft/sec2.)
7.04
1411.2 N
3381
184.5 lbs
15.65 slus
5.12 N
372.15 N
1327.7 lbs
A 501-pound rock has fallen onto a frozen pond that you want to use as an ice-skating rink. If you push the rock with a force of 16 pounds, how fast will the rock accelerate? (You can assume that there is no friction between the rock and the ice.)
7.04
1411.2 N
3381
184.5 lbs
15.65 slus
5.12 N
372.15 N
1327.7 lbs
A 450-kg box is sliding across a floor (μs = 0.45, μk=0.32). What is the frictional force between the box and the floor?
7.04
1411.2 N
3381
184.5 lbs
15.65 slus
5.12 N
372.15 N
1327.7 lbs
A 345-kg box is sliding across a floor (μs = 0.35, μk=0.22). What is the frictional force between the box and the floor?
7.04
1411.2 N
3381
184.5 lbs
15.65 slus
5.12 N
372.15 N
1327.7 lbs
A rock has a mass of 523 grams. What is its weight in Newtons?
7.04
1411.2 N
3381
184.5 lbs
15.65 slus
5.12 N
372.15 N
1327.7 lbs
While driving down a country road, a man has to stop because a 410-pound rock has fallen off of a hill and has landed in the middle of the road (μs = 0.45, μk=0.32). What is the frictional force the man must overcome to get the rock to move?
7.04
1411.2 N
3381
184.5 lbs
15.65 slus
5.12 N
372.15 N
1327.7 lbs
A young boy found a large box that he can use to make a fort. He put some other “treasures” he found into the box, so that its weight is 22 pounds. He tied it to the back of his bike and is pulling it down the road (μs = 0.45, μk=0.32). With what fo
7.04
1411.2 N
3381
184.5 lbs
15.65 slus
5.12 N
372.15 N
1327.7 lbs
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