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College Physics
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ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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 alt="A 0.10-kg ball slides on a frictionless wire along the x-axis. It is acted upon by a force Fx, which is also in the x-direction.The graph
shows Fx as a function of time. At time t = 0.0 s the bead has a velocity vx = +1.5 m/s. The velocity of the ball att = 10. s is (Enter your
answer in units of m/s. Only enter the number using 2 significant figures.)
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Transcribed Image Text:A 0.10-kg ball slides on a frictionless wire along the x-axis. It is acted upon by a force Fx, which is also in the x-direction.The graph
shows Fx as a function of time. At time t = 0.0 s the bead has a velocity vx = +1.5 m/s. The velocity of the ball att = 10. s is (Enter your
answer in units of m/s. Only enter the number using 2 significant figures.)
%3D
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- A person catches a ball with a mass of 145 g dropped from a height of 60.0 m above his glove. His hand stops the ball in 0.0100 s. What is the force exerted by his glove on the ball? Assume the ball slows down with constant acceleration.arrow_forwardA flea jumps by exerting a force of 1.02 x 10-5 N straight down on the ground. A breeze blowing on the flea parallel to the ground exerts a force of 1.16 × 10-6 N on the flea. Find the direction and magnitude (in m/s²) of the acceleration of the flea if its mass is 6.0 × 107 kg. (Let us assume that F points to the right. We will consider this to be the +x direction and vertical to be the +y wind direction.) magnitude 17.1 Did you draw a free-body diagram, and identify the forces acting on the flea? Consider the forces acting on the flea during the time it is in contact with the ground. m/s² direction 6.49 Review vector components. In which of the four quadrants is the resultant force located?° (measured clockwise from the vertical) Tutorial Supporting Materials Physical Constants Submit Answerarrow_forwardThe figure shows three blocks attached by cords that loop over frictionless pulleys. Block B lies on a frictionless table; the masses are mA blocks are released, what is the tension in the cord at the right? 6.70 kg, mB 6.20 kg, and mc = 12.0 kg. When the B C Number Unitsarrow_forward
- A box with mass 25.1 kg has an initial velocity of 2.66 m/s when a woman starts pushing the box with a constant force so that the net force on the box is 3.34 N. What distance has the box travelled when the velocity of the box 4.19 m/s?arrow_forwardIn a fit, a toddler throws straight down his favorite 1.5 kg toy with an initial velocity of 2 m/s. What is the magnitude of the change in velocity of the toy from t = 0.14 seconds to t = 0.31 seconds?arrow_forwardA lump of clay of mass 0.28 kg is dropped from a height of 10.8 m. The clay comes to a full stop 0.075 s after the moment it first touched the ground. What is the magnitude in newtons of the average force of impact that the clay experienced? Express your answer in two decimal places, with units of Newtons.arrow_forward
- The diagram below represents a system consisting of two masses: mi=14 kg and m2=40kg, one of them on an incline and the other one hanging. The pulley is massless and frictionless and the cords joining the masses are ideal. The angle of the incline is 0=35°. The coefficient of kinematic friction is Hk=0.22 and we know the system starts to move from rest. a) Find the system's velocity (magnitude and direction) after moving 25 m along the incline. Solve the problem using the energy approach. m2 b) A cannon on top of a 100 meter tall cliff fires a projectile at 70 m/s at an angle of 25 degrees above the horizon. What is the range of the projectile?arrow_forwardA truck collides with a car, and during the collision, the net force on each vehicle is essentially the force exerted by the other. Suppose the mass of the car is 850 kg, the mass of the truck is 2,750 kg, and the magnitude of the truck's acceleration is 14 m/s2. Find the magnitude of the car's acceleration (in m/s2).arrow_forward
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