COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 2, Problem 75QAP
To determine
The height above the top of window the ball was dropped.
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• Part A
Gulls are often observed dropping clams and other shellfish from a
height to the rocks below, as a means of opening the shells.
If a seagull drops a shell from rest at a height of 13 m, how fast is the shell moving when it hits the rocks?
Express your answer using two significant figures.
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m/s
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49. •A tiger leaps horizontally out of a tree that is
4.00 m high. If he lands 5.00 m from the base of the tree,
calculate his initial speed. (Neglect any effects due to air
resistance.) SSM
3. Another rocket lifts off and accelerates upward at a steady 3.30 m/s2• When it is 235 mabove the launch pad, it discards a used fuel canister. Once it is disconnected, the only forceacting on the canister is gravity (ignore air resistance).(a.} How high is the rocket when the canister hits the launch pad?(b.) What total distance did the canister travel between its release and its crash onto thelaunch pad?
Chapter 2 Solutions
COLLEGE PHYSICS
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- A celebrated Mark Twain story has motivated contestants in the Calaveras County Jumping Frog Jubilee, where frog jumps as long as 2.2 m have been recorded. If a frog jumps 2.2 m and the launch angle is 45, find (a) the frogs launch speed and (b) the time the frog spends in the air. Ignore air resistance.arrow_forward• 2. An arrow is shot upward from the top of a 740 ft building with an initial velocity of 68 ft/s. a. State the arrow's position function. b. State the velocity function. c. State the acceleration. d. Find the average velocity of the arrow between 2 and 4 seconds. e. Find the maximum height reached by the arrow, f. What is the instantaneous velocity and acceleration at 5 seconds. g. The time when its strikes the ground - h. The final velocity when it hits the ground. • i. The time and velocity when it passes 520 ft from the ground.arrow_forwardA)What is the height H of the cliff in m? Part (b) What is the maximum height reached by the arrow along its trajectory in meters? •Part (c) What is the arrow's speed just before hitting the cliff in m/s?arrow_forward
- • A horizontally moving tennis ball barely clears the net, a distance a. To remain within the court’s border, a horizontal distance b. Suppose the height of the net is 1.00 m, and the courts border is 1 2.0 m from the bottom of the net. Use g = 10 m/s2 and show that the maximum speed of the horizontally moving ball clearing the net is about 27 m/s (about 60 mi/h). c. Does the mass of the ball make a difference? Defend your answer.arrow_forward•12-17. A ball is thrown with an upward velocity of 5 m/s from the top of a 10-m high building. One second later another ball is thrown vertically from the ground with a velocity of 10m/s. Determine the height from the ground where the two balls pass each other.arrow_forward44. ••Cody starts at a point 6 km to the east and 4 km to the south of a location that represents the origin of a coordinate system for a map. He ends up at a point 10 km to the west and 6 km to the north of the map origin. (a) Find his average velocity if the trip took him 4 h to complete. (b) Cody walks to his destination at a constant rate. His friend Marcus covers the distance with a combination of jogging, walking, running, and resting so that the total trip time is also 4 h. How do their aver- age velocities compare?arrow_forward
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