Physics Fundamentals
2nd Edition
ISBN: 9780971313453
Author: Vincent P. Coletta
Publisher: PHYSICS CURRICULUM+INSTRUCT.INC.
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Chapter 7, Problem 19P
To determine
The final velocity, after travelling
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Chapter 7 Solutions
Physics Fundamentals
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- A ball of mass 1 kg is shot straight up with an initial speed of 20 m/s. What is its maximum height if there were no air resistance?arrow_forwardA dog with a mass of 57.0 kg slides down a wet slope with negligible friction. The dog starts from rest and has a speed of 3.90 m/s at the bottom. What is the height of the slope (in m)?arrow_forwardYou toss a rock of mass m vertically upward. Air resistance can be neglected. The rock reaches a maximum height h above your hand. What is the speed of the rock when it is at height (a) h/4 and (b) 3h/4?arrow_forward
- A 3.00 kg box slides UP a smooth (frictionless) 39-degree hill with an initial speed of 16.0 m/s. To what maximum height above the bottom of the hill does the box reach before stopping?arrow_forwardGayle runs at a speed of 4.00 m/s and dives on a sled, initiallyat rest on the top of a frictionless, snow- covered hill. After shehas descended a vertical distance of 5.00 m, her brother, whois initially at rest, hops on her back, and they continue downthe hill together. What is their speed at the bottom of the hillif the total vertical drop is 15.0 m? Gayle’s mass is 50.0 kg,the sled has a mass of 5.00 kg, and her brother has a mass of30.0 kg.arrow_forwardNeglecting friction and air resistance, a car with an initial velocity of 76.5 km/h coasts up a hill and comes to stop at the hill's top. What must be the height of the hill (in meters)arrow_forward
- A quarterback throws a ball with an initial speed of 7.35 m/s at an angle of 63.0° above the horizontal. What is the speed of the ball when it reaches 2.20 m above initial throwing point? You can assume air resistance is negligible.arrow_forwardA rock is dropped from rest from a height h above the ground. It falls and hits the ground with a speed of 11 m/s. From what height should the rock be dropped so that its speed on hitting the ground is 22 m/s? Neglect air resistance.arrow_forward13. A block slides along a track with an initial velocity vo = 7.0 m/s from one level to a higher level after passing through an intermediate valley. The difference h from the initial position to the elevated track is 0.89 m. The track is frictionless until reaches the top. What is the velocity of the block when it reaches the top of the track?arrow_forward
- A small block has constantacceleration as it slides downa frictionless incline. The block isreleased from rest at the top of theincline, and its speed after it hastraveled 6.80 m to the bottom of the incline is 3.80 m/s. What is thespeed of the block when it is 3.40 m from the top of the incline?arrow_forwardAn object is thrown with an initial speed of 15 m/s at an angle of 35.0 degrees above the horizontal from the top of a 30.0-m-tall tower. Assume air resistance is negligible, and g = 9.8 m/s2. What is the speed of the object as it hits the ground?arrow_forwardChris and Steve push a huge boulder (m = 65 kg) to the top of an 18 m cliff. The boulder is moving with a speed of 6.0 m/s when it tumbles over the edge of the cliff. How fast will it be going when it hits the ground? (no air resistance)arrow_forward
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