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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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In Projectile Motion....
1. The net acceleration of the ball is a constant at _____
2. The velocity of the ball is least at the peak or at ____
3. The horizontal velociy is _____ in all locations.
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- An airplane flying horizontally at a velocity of 138 m/s and at an altitude of 1500 meters when one of its wheels falls off. a) How long (in seconds) does it take the wheel to reach the ground? b) What horizontal distance (in meters) will the wheel travel before it strikes the ground?arrow_forward2. A particle moves in uniform circular motion, over a horizontal xy- plane. At one instant it moves through the points (2.0 m, 4.0 m) with a velocity of -6.00i m/s and an acceleration of 18.0j m/s?. a) Draw the circular path of the particle and label the velocity vector and the acceleration vector. b) Calculate the x and y-coordinates of the center of the circular path. c) Calculate the period of rotation.arrow_forwardTo have anv hone of making nar on a hole. a golfer has to hit the next shot over some nearby trees and past a water hazard, whose far side is located-on level ground 100 m away. The ball is hit with an initial speed of 30 m/ at an angle of 45°, allowing it just to clear the trees. Does the ball get past the water hazard? 100 marrow_forward
- 7. You are sitting in a helicopter that is climbing directly upward at a constant velocity of 2.5 m/s. The helicopter door is open, and you notice that a small screw slips out the door. You can assume the screw has no horizontal component to its velocity. (a) What is the velocity of the screw 4.0 s after falling out of the helicopter? (b) How far below the helicopter is the screw at this time?arrow_forward3. Consider a ball undergoing a 2D projectile motion, whose position (unit: m) as a function of time (unit: s) is 3(t) = tî + (V3t – 5t²)ĵ, where t stands for time. (a) Find the initial launch angle of the projection. (b) Find the speed of the ball when it lands on the ground.arrow_forwardHelicopter blades withstand tremendous stresses. In addition to supporting the weight of the helicopter, they are spun at rapid rates and experience large centripetal accelerations, especially at the tip. Calculate the centripetal acceleration at the tip of a 4.00 m long helicopter blade that rotates at 5 Hzarrow_forward
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