A 2.2 kg toy car can move along an x axis. The figure gives Fx of the force acting on the car, which begins at rest at time t -0. The scale on the Fx axis is set by Fx-6.0 N. In unit-vector notation, what is Pat (a)t - 4.0s and (b)t - 7.0 s.(c) what is att-9.0s? F, (N)

Q: In the figure, a crate of mass m = 89 kg is pushed at a constant speed upa frictionless ramp (0 =…

A:

Q: A horizontal force of 93.2N is applied to a 42.5 kg crate on a rough level surface. If the crate…

A: Given: Force = 93.2 N  mass = 42.5 kg acceleration = 1.08 m/s2  To Find : Magnitude of kinetic…

Q: A 35.0-kg child swings in a swing supported by two chains, each 2.90 m long. The tension in each…

A: The child's mass:the length of the chains: The tension in the chains at the lowest point:

Q: A frictionless plane is 10.0 m long and Inclined at 28.0°. A sled starts at the bottom with an…

A: The acceleration of the sled is, a=mgsinθm=gsinθ=9.8 m/s2sin28°=4.60 m/s2 (a) The time taken by the…

Q: A horizontal force of magnitude F = 57.5 N pushes on a block of mass m = 4.7 kg. The block is on a…

A: The given situation can be represented as

Q: In the figure, a crate of mass m = 77 kg is pushed at a constant speed up a frictionless ramp (0 =…

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Q: A toy rocket engine is securely fastened to a large puck that can glide with negligible friction…

A:

Q: 1.5 Assume 50 kg of mass are placed on a, only O the ling the pan of a spring balance located on a…

A: Given Mass m = 50 kg Acceleration due to gravity g = 9.7 m/s2

Q: A constant horizontal force Fa pushes a 7.50 kg FedEx package across a frictionless floor on which…

A: The mass of the package is 7.50 kg.

Q: An antelope is being pulled by two forces whose vector-component expressions are: F1 = -3.5Ni +…

A: The forces are  F1 = -3.5Ni^ + 3.4Nj^ + 3.9Nk^ F2 = 3Ni^ + 2.6Nj^ + -1.5Nk^ The magnitude of the…

Q: Problem 2: A runaway train has a mass of 1.5 × 104 kg and a speed of 5 m/s. How much time does it…

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Q: The figure shows an overhead view of a 0.022 kg lemon half and two of the three horizontal forces…

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Q: Part (a) Write an expression for the component of the force in the x-direction, F, in terms of the…

A: Given data: Force acting on the block (F) = 87 N Angle (θ) = 19°, with horizontal Required:  An…

Q: Three forces act on a particle that moves with unchanging velocity V = (2.2 m/s)i + (-7.8 m/s)j. Two…

A: Since v is constant, acceleration is zero. Fnet=ma   =mdvdt   =m0    =0…

Q: Two horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P =…

A: Given: The mass of the object is 5.1 kg. P→=-2.1i^+4.25k^ N The velocity of the object is constant.

Q: In the figure, a crate of mass m = 99 kg is pushed at a constant speed up a frictionless ramp (0 =…

A:

Q: Three forces act on a particle that moves with unchanging velocity F₁ = (2.3 N )î + (3.8 N )Ĵ +…

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.