EBK PHYSICS FOR SCIENTISTS AND ENGINEER
6th Edition
ISBN: 9781319321710
Author: Mosca
Publisher: VST
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Chapter 3, Problem 79P
To determine
The launch angle of a projectile, if its speed at
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A projectile is shot in the air from ground level with an initial velocity of 490 m/sec at an angle of 60° with the horizontal.
(a)At what time (in seconds) is the maximum range of the projectile attained?
(b)What is the maximum range (in meters)?
A sniper atop a building 150m high fired a bullet parallel to the horizontal with a speed of 1800km/h. Assuming that the bullet will hit its target, what would be the resulting range?
When a projectile's launch speed is doubled its range over level ground (for any launch angle) will be changed by a factor of what?
Chapter 3 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
Ch. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Prob. 3PCh. 3 - Prob. 4PCh. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7PCh. 3 - Prob. 8PCh. 3 - Prob. 9PCh. 3 - Prob. 10P
Ch. 3 - Prob. 11PCh. 3 - Prob. 12PCh. 3 - Prob. 13PCh. 3 - Prob. 14PCh. 3 - Prob. 15PCh. 3 - Prob. 16PCh. 3 - Prob. 17PCh. 3 - Prob. 18PCh. 3 - Prob. 19PCh. 3 - Prob. 20PCh. 3 - Prob. 21PCh. 3 - Prob. 22PCh. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Prob. 25PCh. 3 - Prob. 26PCh. 3 - Prob. 27PCh. 3 - Prob. 28PCh. 3 - Prob. 29PCh. 3 - Prob. 30PCh. 3 - Prob. 31PCh. 3 - Prob. 32PCh. 3 - Prob. 33PCh. 3 - Prob. 34PCh. 3 - Prob. 35PCh. 3 - Prob. 36PCh. 3 - Prob. 37PCh. 3 - Prob. 38PCh. 3 - Prob. 39PCh. 3 - Prob. 40PCh. 3 - Prob. 41PCh. 3 - Prob. 42PCh. 3 - Prob. 43PCh. 3 - Prob. 44PCh. 3 - Prob. 45PCh. 3 - Prob. 46PCh. 3 - Prob. 47PCh. 3 - Prob. 48PCh. 3 - Prob. 49PCh. 3 - Prob. 50PCh. 3 - Prob. 51PCh. 3 - Prob. 52PCh. 3 - Prob. 53PCh. 3 - Prob. 54PCh. 3 - Prob. 55PCh. 3 - Prob. 56PCh. 3 - Prob. 57PCh. 3 - Prob. 58PCh. 3 - Prob. 59PCh. 3 - Prob. 60PCh. 3 - Prob. 61PCh. 3 - Prob. 62PCh. 3 - Prob. 63PCh. 3 - Prob. 64PCh. 3 - Prob. 65PCh. 3 - Prob. 66PCh. 3 - Prob. 67PCh. 3 - Prob. 68PCh. 3 - Prob. 69PCh. 3 - Prob. 70PCh. 3 - Prob. 71PCh. 3 - Prob. 72PCh. 3 - Prob. 73PCh. 3 - Prob. 74PCh. 3 - Prob. 75PCh. 3 - Prob. 76PCh. 3 - Prob. 77PCh. 3 - Prob. 78PCh. 3 - Prob. 79PCh. 3 - Prob. 80PCh. 3 - Prob. 81PCh. 3 - Prob. 82PCh. 3 - Prob. 83PCh. 3 - Prob. 84PCh. 3 - Prob. 85PCh. 3 - Prob. 86PCh. 3 - Prob. 87PCh. 3 - Prob. 88PCh. 3 - Prob. 89PCh. 3 - Prob. 90PCh. 3 - Prob. 91PCh. 3 - Prob. 92PCh. 3 - Prob. 93PCh. 3 - Prob. 94PCh. 3 - Prob. 95PCh. 3 - Prob. 96PCh. 3 - Prob. 97PCh. 3 - Prob. 98PCh. 3 - Prob. 99PCh. 3 - Prob. 100PCh. 3 - Prob. 101PCh. 3 - Prob. 102PCh. 3 - Prob. 103PCh. 3 - Prob. 104PCh. 3 - Prob. 105PCh. 3 - Prob. 106PCh. 3 - Prob. 107PCh. 3 - Prob. 108PCh. 3 - Prob. 109PCh. 3 - Prob. 110PCh. 3 - Prob. 111PCh. 3 - Prob. 112PCh. 3 - Prob. 113PCh. 3 - Prob. 114PCh. 3 - Prob. 115PCh. 3 - Prob. 116PCh. 3 - Prob. 117PCh. 3 - Prob. 118PCh. 3 - Prob. 119PCh. 3 - Prob. 120PCh. 3 - Prob. 121PCh. 3 - Prob. 122P
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- In the absence of air resistance, a projectile is launched from and returns to ground level. It has a range of 16m. Suppose the launch speed is doubled, and the projectile is fired at the same angle above the ground. What is the new range?arrow_forwardA projectile is launched at an angle of 45 degrees with respect to the horizontal ground. What is the range of the projectile if it was launched at a speed of 180 ft/s?arrow_forwardA projectile is fired in such a way that its horizontal range is equal to three times its maximum height. What is the angle of projection?arrow_forward
- An archer aims at a target. Suppose the archer’s arrow is 1.2m above the ground, the bull’s eye is 43m away and at aheight of 1.8m, and she can shoot the arrow at an initial speed of 28m/s. It is a calm day with nowind so you ignore air resistance. At what angle should she aim her arrow to hit the bull’s eye?arrow_forwardA cannon is fired at an angle of 48° with the horizontal. If the cannonball has an initial velocity of 611 feet per second, how far (horizontally) will the shot travel? Assume the initial height of the projectile is 0 feet, and neglect air resistance.arrow_forwardA baseball is hit from a height of 1.0 m at an angle of 27 degrees above the ground. It just barely clears a fence that is 4.0 m tall and 122 m away. What was the initial speed of the ball when it was hit? (ignore air resistance)arrow_forward
- Now, the target moved further away and the sniper must compensate, primarily adjusting the angle of its rifle. If the new angle is now 21 degrees but everything remains the same (150m high building, 1800km/h initial velocity), how high will the bullet reach before it starts falling down? Start the measurement on top of the building.arrow_forwardA target lies a distance R = 1100 m from a cannon across level ground, and a distance d = 780 m behind a wall h = 400 m tall. If the cannon shoots projectiles with speed 160 m/s, at what angle should the cannon fire so as to hit the target over the wall?arrow_forwardA projectile is shot in the air from ground level with an initial velocity of 500 m/sec at an angle of 45° with the horizontal. (a)At what time (in seconds) does the projectile reach maximum height? (b)What is the approximate maximum height (in meters) of the projectile?arrow_forward
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