EBK PHYSICS FUNDAMENTALS
2nd Edition
ISBN: 9780100265493
Author: Coletta
Publisher: YUZU
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Chapter 4, Problem 10P
To determine
Whether, the elevator is an inertial frame of reference or not.
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Which of the following system CAN be used as an inertial reference frame?
a. A block rotating about its center of mass
b. A box sliding down with a constant velocity
c. A car turning in a curved intersection
d. A chair on a ferris wheel rotating at a constant rate.
Which among the following can NOT beconsidered an inertial frame of reference?
a. All are inertial reference frames
b. A bus moving at constant speed of 70 kph at North Luzon Expressway
c. Manila City Hall
d. A car rounding a curve at constant speec
e. A box at rest.
Which of these is an inertial reference frame (or a very good approximation)?A. Your bedroomB. A car rolling down a steep hillC. A train coasting along a level trackD. A rocket being launchedE. A roller coaster going over the top of a hillF. A sky diver falling at terminal speed
Chapter 4 Solutions
EBK PHYSICS FUNDAMENTALS
Ch. 4 - Prob. 1QCh. 4 - Prob. 2QCh. 4 - Prob. 3QCh. 4 - Prob. 4QCh. 4 - Prob. 5QCh. 4 - Prob. 6QCh. 4 - Prob. 7QCh. 4 - Prob. 8QCh. 4 - Prob. 9QCh. 4 - Prob. 10Q
Ch. 4 - Prob. 11QCh. 4 - Prob. 12QCh. 4 - Prob. 13QCh. 4 - Prob. 14QCh. 4 - Prob. 15QCh. 4 - Prob. 16QCh. 4 - Prob. 1PCh. 4 - Prob. 2PCh. 4 - Prob. 3PCh. 4 - Prob. 4PCh. 4 - Prob. 5PCh. 4 - Prob. 6PCh. 4 - Prob. 7PCh. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - Prob. 10PCh. 4 - Prob. 11PCh. 4 - Prob. 12PCh. 4 - Prob. 13PCh. 4 - Prob. 14PCh. 4 - Prob. 15PCh. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Prob. 19PCh. 4 - Prob. 20PCh. 4 - Prob. 21PCh. 4 - Prob. 22PCh. 4 - Prob. 23PCh. 4 - Prob. 24PCh. 4 - Prob. 25PCh. 4 - Prob. 26PCh. 4 - Prob. 27PCh. 4 - Prob. 28PCh. 4 - Prob. 29PCh. 4 - Prob. 30PCh. 4 - Prob. 31PCh. 4 - Prob. 32PCh. 4 - Prob. 33PCh. 4 - Prob. 34PCh. 4 - Prob. 35PCh. 4 - Prob. 36PCh. 4 - Prob. 37PCh. 4 - Prob. 38PCh. 4 - Prob. 39PCh. 4 - Prob. 40PCh. 4 - Prob. 41PCh. 4 - Prob. 42PCh. 4 - Prob. 43PCh. 4 - Prob. 44PCh. 4 - Prob. 45PCh. 4 - Prob. 46PCh. 4 - Prob. 47PCh. 4 - Prob. 48PCh. 4 - Prob. 49PCh. 4 - Prob. 50PCh. 4 - Prob. 51PCh. 4 - Prob. 52PCh. 4 - Prob. 53PCh. 4 - Prob. 54PCh. 4 - Prob. 55PCh. 4 - Prob. 56P
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- Taking a frame attached to Earth as inertial, which of the following objects cannot have inertial frames attached to them, and which are inertial reference frames?(a) A car moving at constant velocity(b) A car that is accelerating(c) An elevator in free fall(d) A space capsule orbiting Earth(e) An elevator descending uniformlyarrow_forwardWhich object provides an inertial frame of reference?a. the tip of the moving second hand of a clockb. a rock thrown vertically upwardc. a skydiver falling at terminal velocityd. a pendulum swinging with no air resistancearrow_forwardFor a body at a height of 200m, what is the body's velocity when it reaches the earth's surface and the mass of the body is 25kgarrow_forward
- On Mars, a ball is rolling from a ground to a hill, and we know the height of the hill, Z, is 10 m, and the initial velocity ofthe ball on the ground and the final velocity on the hill are known: V1 = 20 m/s and V2 = 10 m/s, respectively. The mass ofthe ball, m, is 4 kg. The gravitational acceleration on Mars, gMars, is 3.7 m/s2. Please calculate 1) the change in kineticenergy, ΔKE, in J and 2) the change in potential energy, ΔPE, in J, of the ball for the rolling process.arrow_forwardTrue or false A. An accelerated frame of reference is an inertial frames of reference. B. We always observe motion from an accelerated frame of reference. C. Fictitious forces occur in accelerated frames of reference. D. To an observer in an accelerated frame of reference, fictitious forces seem real. E. Centrifugal force is a real force, but centripetal force is a fictitious force.arrow_forwardIf a scientist awards a value with a negative g value, is the moving object moving up away from the Earth, or down toward the Earth?arrow_forward
- Observing a spacecraft land on a distant asteroid, scientists notice that the craft is falling at a rate of 5 m/s. When it is 100 m closer to the surface of the asteroid, the craft reports a velocity of 8 m/s. According to their data, what is the approximate gravitational acceleration on this asteroid?arrow_forwardA spaceship at rest relative to a nearby star in interplanetary space has a total mass of 2.50 104 kg. Its engines fire at t = 0, steadily burning fuel at. 76.7 kg/s with an exhaust speed of 4.25 103 m/s. Calculate the spaceships (a) acceleration at t = 0, (b) mass at t = 125 s, (c) acceleration at t = 125 s, and (d) speed at t = 125 s, relative to the same nearby star.arrow_forwardExplain why is the earth only approximately an inertial reference frame?arrow_forward
- In which one of the following situations is the observer in an inertial reference frame? a)An astronaut is conducting microgravity experiments aboard the International Space Station. b)A woman is walking at a constant speed down a flight of stairs. c)A NASCAR racer follows the curve at the end of an oval track while moving at constant speed. d)An astronaut is in a rocket that is beginning lift off from the launchpaarrow_forwardA man of weight 80 kg is standing in an elevator which is moving with a constant velocity of 6 m/s in downward direction. The apparant weight of a man will be (take g=10 m/s^2) A. 1280 N B. 0 N C. 320 N D. 800 N E. 640 Narrow_forwardThe bullet leaves the muzzle of a Glock 17 pistol with a speed of 375 m/s. The barrel of the pistol is 11.4 cm long. Find the acceleration rate of the bullet passing through the barrel.arrow_forward
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