A box of mass 4.0 kg hangs by a cable from the ceiling of an elevator. The elevator is moving up at a steady speed of 5.0 m/s for 8.0 m. Use g = 10 m/s2. Match the answers with questions.

Q: 1. A crate of mass 10.0 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The…

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Q: 16. A rubber ball and a lump of clay have equal mass. They are thrown with equal speed against a…

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Q: box of 18kg is released from rest on a rough inclined plane and slides to the bottom. The plane is…

A: Here Mass of a box = 18kg released from rest on a rough inclined plane and slides to the bottom.…

Q: How much work (in J) must be done to lift a stack of bricks, which has a mass of 50 kg, from the…

A: Given data The given mass is m=50 kg The height is h=8 m The accleration due to gravity is g=10 m/s2…

Q: Six dogs pull a two-person sled with a total mass of 220 kg. The coefficient of kinetic friction…

A: The free body diagram is as follows,

Q: A 2.00-kg (20.0-N) stone is dropped from a height of 5.0 m, and strikes the ground with a velocity…

A: Weight of stone (w) = 20 N Mass of stone (m) = 2 kg Initial height (h) = 5 m Velocity with which the…

Q: A crane lifts a 300 kg load at a constant speed at a vertical distance of 3.0 m in 10 s. Calculate…

A: solution as

Q: 1. A 10.0-kg crate slides along a horizontal frictionless surface at a constant speed of 4.0 m/s.…

A: Energy of system is always conserved. It just changes its form. Here the total mechanical energy is…

Q: A sledge loaded with bricks has a total mass of 18.0 kg and is pulled at a constant speed by a rope…

A: Draw the free-body diagram of the sledge.

Q: A 1500 kg car is to accelerate from rest to a speed of 20 m/s in a time of 15 sec as it climbs a 15°…

A:

Q: 2. A 1050 J of work is done by a post-person when pushing a parcel with a mass of 33.2 kg with a…

A:

Q: 6. At the moment when a bodybuilder throws a 10.0kg medicine ball, it is exactly 2.0m above the…

A: Mass ( m ) = 10 kg Height ( h ) = 2 m Velocity ( v ) = 5 m/s Maximum height ( hmax ) = 3 m

Q: Suppose a 450 g kookaburra (a large kingfisher bird) picks up a 80 g snake and raises it 2.8 m from…

A: a)The work the bird did on the snake must be equal to the change in potential energy of the snake.…