This graph shows a ball rolling from A to G. B D. Which letter shows the ball when it has the maximum kinetic energy? A В DE
Q: How much work is being done the ball by the 10 n tension for The strinh during one complete…
A: Given : F = 10 N
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A: An object is said to be in motion if its position changes with respect to time. When a particle is…
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A: Given value--- A car engine produces a constant power of P = 340 hp. The car and motor have a…
Q: 1. A box is moving along a ramp, with a velocity directed up the ramp and an acceleration down the…
A: Part (a): The free body diagram of body is shown as, Gravity force acting on body in the direction…
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Q: Suppose a 443 g kookaburra (a large kingfisher bird) picks up a 74 g snake and raises it 2.3 m from…
A: Work done by a force to raise an object to a height is called the potential energy of the object
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A: weight of cart w = 48kg applied force on cart F = 85N the applied direction θ = 35° distance moved…
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Q: An athlete jumps vertically on a trampoline leaving the surface with a speed of 8.5 m/s upwards.…
A: Given data: Speed u = 8.5 m/s
Q: - Who did more work? Explain
A: Solution : Work done (W) via Force (F) is equal to the change in Kinetic Energy (K.E) W = ∆K.E W =…
Q: force of 30.0 N propels a car weighing 1.5 kg initially at rest for a distance of 2.8 m across a…
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Q: An 8.0-g bullet has a speed of 730 m/s. a. What is its kinetic energy? KE = J b. What is its kinetic…
A: Given data: Mass (m) = 8.0 g = 8.0×10-3 kg Speed (v) = 730 m/s Required: The kinetic energy (KE)
Q: The figure shows the top view of an object of mass m moving on a uniformly rough horizontal surface.…
A: Given data: Mass of the object, m=7.15 kg Coefficient of friction, μ=0.644 Radius of the…
Q: When a 4.2g bullet hits a block of wood, it slows to a stop from an initial speed of 175.4 m/s. The…
A: Given:Mass of the bullet = 4.2 gInitial speed of the bullet = 175.4 m/sFinal speed of the bullet =…
Q: A sledder with a total mass 40.0 kg (including the sled) slides down a 10.0m hill that is 20◦ from…
A: i. Kinetic energy of the sledder at the bottom of hill Ek=12mv2=12(40.0 kg)5.5 m/s2=605 J
Q: Jim rides his skateboard down a ramp that is in the shape of a quarter circle with a radius of 5.00…
A: This is a question regarding the energy of a body and the work done by friction. The potential…
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Q: A 140 g baseball is pitched and crosses the plate at 38 m/s. The batter swings and hits the ball, so…
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Q: 2. The graph shows the x component of the net force on an object versus position. The work done by…
A: Solution:-We know that The work done is given as,W= FdWhere F - force d - displacement
Q: If R = 22.2 cm, M = 552 g, and m = 191 g in the figure, find the speed of the block after it has…
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Q: 84. Boxes A and B in Figure P10.84 have masses of 12.0 kg and 4.0 kg, respectively. The two boxes…
A: Given: The mass of box A is 12 kg. The mass of the block B is 4 kg. The initial speed of the boxes…
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- A daredevil on a motorcycle leaves the end of a ramp with a speed of 33.2 m/s as in the figure below. If his speed is 31.0 m/s when he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance. m A daredevil on a motorcyle is at the end of a ramp that is sloped up to the right. An arrow parallel to the ramp's surface is above the daredevil. A dotted-line path traces the trajectory of the daredevil. The path extends up to the right, initially parallel to the surface of the ramp, and decreases in slope until it reaches a maximum, whereupon it extends down to the right with increasing slope magnitude. The vertical distance between the maximum and the highest point of the ramp is h. A horizontal arrow points to the right above the maximum.4. Two identical masses are suspended by strings wrapped around identical frictionless pulleys, except that a heavy metal ring has been added to one of the pulleys. The masses are released from rest and allowed to fall to the ground. How does the final kinetic energy of the falling mass compare between the two systems? Clearly explain your line of reasoning using physics concepts and equations. m mA baseball hits the catcher’s glove with a horizontal velocity of 55m/s. The mass of the baseball is 0.15kg. The displacement of the ball due to the deformation of the catcher’s glove and the movement of the catcher’s hand is 23cm from the instant the ball makes contact with the glove until it stops. a. How much kinetic energy does the baseball have just before it strikes the glove? b. How much work does the catcher have to do to the ball during the catch and is it positive or negative? c. What is the average impact force exerted by the glove on the baseball? Answer parts a-c. Include units and direction.
- A 500 kg cart rests atop a hill 30.0 m high on a roller coaster. Its gravitational potential energy is measured relative to the bottom of the hill. The cart then rolls down the hill. Which of these best describes what is happening in this situation? a. the total mechanical energy of the cart is decreasing, the kinetic energy of the cart is increasing, and the gravitational potential energy of the cart is increasing b. the total mechanical energy of the cart is increasing, the kinetic energy of the cart is increasing, and the gravitational potential energy of the cart is increasing c. the total mechanical energy of the cart is increasing, the kinetic energy of the cart is increasing, and the gravitational potential energy of the cart is decreasing d. the total mechanical energy of the cart is increasing, the kinetic energy of the cart is decreasing, and the gravitational potential energy of the cart is increasing e. the total mechanical energy of…A 1.0 kg cart is sliding to the right on a frictionless surface with speed 2 m/s. It collides head-on and sticks to a 0.5 kg cart that is sliding to the left with speed 4 m/s. What is the kinetic energy of the combined carts after the collision? (Hint: Make a table!) A.6 J B.0 J C.2 J D.4 JSara used a sling shot to hunt a bird. She stretched the rubber band 5cm when she applied 2 N force. How much elastic potential energy is stored in the sling shot ? A. 0.05 J B. 0.075 J C. 0.45 J D. 0.25 J
- A 700 kgkg elevator accelerates upward at 1.4 m/s2m/s2 for 14 mm, starting from rest. A. How much work does gravity do on the elevator? Express your answer with the appropriate units. B. How much work does the tension in the elevator cable do on the elevator? Express your answer with the appropriate units. C.What is the elevator's kinetic energy after traveling 14 mm? Express your answer with the appropriate units.You push a box up a ramp (friction between the box and the ramp is not negligible). Call the initial state when you begin to push the box. Call the final state after you have pushed the box up the ramp a distance of 0.5 m and it is moving with a speed of 2 m/s For which of the following systems does the energy remain constant?A. System: box + ramp + Earth + youB. System: boxC. System: box + ramp + EarthD. System: youE. System: box + rampF. None of the above. Two cars are driving down the road. They notice that they are going to crash, so both drivers slam on the brakes. The cars skid, but still collide. The cars stick together and eventually slide to a stop. Call the initial state just before the drivers apply the brakes and the final state just after the collision had occurred. Treat this situation as realistically as possible. For which of the following systems does the energy remain constant?A. System: both carsB. System: both cars + the groundC. System: the second carD. System:…You throw a basketball straight up into the air with an initial velocity of 5.6 m/s. The ball leaves your hand 1.2 meters above the ground. It moves upwards, stops, and then goes all the way down until it hits the ground (below the height you threw from).A. Use conservation of energy (and not the kinematics equations) to calculate the velocity of the ball the instant before it hits the ground.
- A 1.0 kg cart is sliding to the right on a frictionless surface with speed 2 m/s. It collides head-on and sticks to a d.5 kg cart that is sliding to the left with speed 4 m/s. What is the kinetic energy of the combined carts after the collision? (Hint: Make a table!) A.O 2J B.O4J C. 0 J D.O6JA horizontal carousel is rotating around its axis with constant angular velocity w. On the carousel there is a straight track passing through its middle. A cart of mass m is traveling along the track with constant velocity v relative to the carousel. Note that there is friction between the cart and the carousel. FR XRE. 19.77 m/s 21.85 m/s C. 26.37 m/s F. 1--1 IYYVE On the roller-coaster shown, a car is moving 12 m/s toward the right at point 1. Assuming no friction, calculate the speed of the car at point 4. 3 40 m 26 m 4 15 m 21. A. 20.28 m/s D. 25.18 m/s 24.54 m/s B. 18.94 m/s E. F. C. 23.73 m/s 26.35 m/s 1--1 KTMDG A box slides from rest down a curved slope. Its initial height is 21 m above the ground, and it comes off the slope 7_m above the ground. How fast is the box moving as it leaves the slope? Assume friction is negligible. ^ Pigshow.jpeg Pig show.jpeg