In the winter sport of curling, players give a 20 kg stone a push across a sheet of ice. The stone moves approximately 40 m before coming to rest. The final position of the stone, in principle, only depends on the initial speed at which it is launched and the force of friction between the ice and the stone, but team members can use brooms to sweep the ice in front of the stone to adjust its speed and trajectory a bit; they must do this without touching the stone. Judicious sweeping can lengthen the travel of the stone by 3 m. Suppose the stone is launched with a speed of 3 m/s and travels 40 m before coming to rest. What is the approximate magnitude of the friction force on the stone?A. 0 N       B. 2 N          C. 20 N         D. 200 N

Q: Alice is pushing a 20 kg cart to the left, Bob is pushing back to the right. The cart is moving at a…

A: Alice is pushing a 20 kg cart to the left, Bob is pushing back to the right. The cart is moving at a…

Q: A flea jumps by exerting a force of 1.32 x 10 N straight down on the ground. A breeze blowing on the…

A: force exerted by flea = 1.32 x 10-5 N  down wardbut according Newtons third lawforce acting on flea…

Q: Student A and Student B are both wearing inline skates. Student B pushes Student A abruptly. This…

A: Initially both the students are at rest, so the initial momentum of the both the students A and B is…

Q: pine sphere (??pine = 0.545 g/cm3) with a radius of 10.0 cm is connected to a large iron anchor with…

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Q: A person drags a sled across a frozen lake to town. The surface of the lake is quite smooth and…

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Q: An electron is a subatomic particle (m = 9.11 x 10*31 kg) that is subject to electric forces. An…

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Q: In a performance test, each of two cars takes 8.7 s to accelerate from rest to 27 m/s. Car A has a…

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Q: At night while it is dark, a driver inadvertently parks his car on a drawbridge. Some time later,…

A: GivenCoefficient of state friction         μs Coefficient of kinetic friction        μk =0.470.

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Q: When an object accelerates at 9.8 m/s2 (or 32 ft/s2), we say it accelerates with 1 g. This is true…

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Q: A 2110 kg car traveling at 8.4 m/s collides with a 2730kg car that is initially at rest at the…

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Q: In the figure provided, there is a crate of mass 4.87 kg on top of another crate of mass 2.66 kg.…

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Q: wo people, one of mass 100 kg and the other of mass 50 kg, stand facing each other on an ice-covered…

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Q: ou go trick-or-treating with your friends and end up with more candy than you know what to do with.…

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Q: Two people, one with mass 50kg and one with mass 60 kg are sitting opposite each other in rolling…

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Q: During launches, rockets often discard unneeded parts. A certain rocket starts from rest on the…

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Q: A toy freight train consists of an engine and three identical cars. The train is moving to the right…

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Q: identified a type of fundamental particle called a muon, which effectively behaves like a very heavy…

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Q: ocks are positioned on surfaces, each inclined at the same angle of 59.6 degrees with respect to the…

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A: Given: Mass of the particle, m=5 kg Forces acts on the particle, F1=2i-3j N and F2=6i+8j N

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Q: Let's say an astronaut is walking on the moon and wants to test out some basic kinematics. Because…

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: