Abbey Caldwell, competing in the women's 1500 metres at the Birmingham Commonwealth Games, is running the last 100 metres of her race. Briefly describe the forces acting on Abbey as she runs the final straight towards the finish line. Hint: In your answer, make sure that the explanation is related to a physics principle covered in this unit.

Q: Consider the system of two crates shown below, which are tethered to each other by a massless…

A: Solution: given that m1 = 35 kg m2 = 60 kg L = 22 m angle = 31.7 degrees coeff of kinetic friction =…

Q: A steady force impacts a 0.85 kg ball resting on the ground. The impact lasts 0.36 seconds,…

A: Given Data, Mass of the ball (m)=0.85 kg Time duration (∆t=0.36 s Velocity (v)=3.1 m/s

Q: A sodium ion Na* has mass 3.817 x 10-26 kg and is initially at rest on a Cartesian coordinate system…

A: Charge of Na+ = +eCharge of CO32- = -2e Distance between the charges = √ { ( x2 - x1)2 + ( y2 - y1)2…

Q: A) Find the force (in N) exerted on the car      Magnitude =      Direction (counterclockwise from…

A: Analyze the following diagram. Let the clockwise direction is the positive direction of angle. A)…

Q: An object with a mass of m= 15 kg is at rest on a frictionless surface and is subject to 2 forces…

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Q: skater of mass m standing on ice throws a stone of mass M with speed v in a horizontal direction.…

A:

Q: A mass of 1.33 kg is initially at rest upon a frictionless incline of 57 degrees. How far down the…

A:

Q: A person jumps from the roof of a house 3.7-m high. When he strikes the ground below, he bends his…

A:

Q: The force shown in the force vs. time diagram in the figure below acts on a 1.0-kg object. F, (N) A…

A:

Q: It is the STRONG NUCLEAR FORCE of the neutron that keeps the nucleons of the atom together if…

A: There are 4 kinds of fundamental forces. These are, Gravitational Force: It acts between two…

Q: During a time interval of one second, a ball moves in the +x or -x direction (that is, to the right…

A: b) The acceleration is the rate of change of velocity.   In this case, the ball moves along right…

Q: When serving a tennis ball, a player hits the ball when its velocity is zero (at the highest point…

A:

Q: A mass M is at rest on a tilted tabletop, tied to a string which is tied to a second mass m that…

A: Consider the figure of the arrangement given below. Let the tilt of the tabletop be denoted by θ.

Q: A modern nuclear aircraft carrier weights in at 90000 tons and a) What would be the average force it…

A:

Q: Topic: You find yourself trapped in the middle of a large frozen lake. Assume the ice has no…

A: In a given situation a person trapped in a middle of large frozen lake. Friction is not present in…

Q: school physics. Formula: 1/2 mv2 + Fd cos theta = 1/2      A 1600 kg car is moving along a level…

A: Given  Mass m = 1600 kg  Initial velocity u = 35 m /s distance travelled s = 60 m  Force F = -800 N

Q: Second law of Newton 1. A group of students performed Newton's second law experiment and made a…

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Q: A 5-kilogram object is moving in a plane, with its x and y coordinates given by: x(t) = 5t2? 1 ,…

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Q: The coefficient of friction between the wheels of Yamaha motorcycle and the dry pavement is 0.79. An…

A:

Q: Given a collision in which car #1 of mass 5,000 kg collided with car #2 of mass 2,500kg . If the…

A: Given data: Mass of the car 1 is, m1 = 5000 kg Mass of the car 2 is, m2 = 2500 kg The magnitude of…

Q: A1 kg. mass is located at (xy)-(4.3); a 2 kg mass is located at (xy)-(-8,-6). In units of G, what is…

A:

Q: A skater of mass m standing on ice throws a stone of mass M with speed v in a horizontal direction.…

A: mass of skater = m mass of stone = M speed with which the stone is thrown = v

Q: Wheaties box from the Cheerios box?

A: Here We apply newton first law   F=ma

Q: QUESTION 2 What is the y-component of the net force acting on the same 2 kg mass at the origin? O ON…

A: To determine,the Y-compomnent of the Force acting on the same 2 kg mass at the origin.given,mass(m1…

Q: Problem 1: Two trains pass each other in opposite directions in close proximity on parallel tracks.…

A: When two trains pass each other in opposite direction in close proximity on parallel tracks then…

Q: A small car gets into a head on collision with an 18-wheeler. During the collision, which vehicle…

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Q: A 0.55 kg football is thrown with a velocity of 17 m/s to the right. A stationary receiver catches…

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Q: A flea jumps by exerting a force of Flea = -1.52 x 10-5 ĵ N straight down on the ground. A breeze…

A: Given Data: The force exerted by the flea is, Fflea→=-1.52×10-5 j^ N The force exerted by the wind…

Q: A net force is applied in the positive directions to an object moving in one dimension. The graph of…

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Q: A 1370 kg jeep traveling at 19 m/s can be stopped in 24.0 s by gently applying the brakes. a) What…

A:

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: Your Physics 4A physics textbook is pressed against the wall by a mysterious floating hand as shown…

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Q: Tom enlists the help of his friend John to move his car. They apply forces to the car. F1 = 430 N…

A: (A) Analyze the diagram. Consider the upward direction to be positive and the downward direction to…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!