Read the following questions carefully. Write the answer, in capital letters, before the mumber.1. When can we be certain that the average velocity of an object is always equal to its instantaneousvelocity?A. AlwaysB. NeverC. only when the velocity is constantD. only when the acceleration is constant2. A bull is thrown direetly upward and experiences no air resistance, Which one of the followingstatements about its motion is correct?A. The acceleration is downward during the entire time the ball is in the air.B. The acceleration of the ball is upward while it is traveling up and downward while it istraveling down.C. The acceleration of the ball is downward while it is traveling up and upward while it isD. The acceleration of the ball is downward while it is traveling up and downward while it istraveling down.traveling down but is zero at the highest point when the ball stops.3. The position of an object is given by x-ur - br' + et where a -41 m/s3, b- 2.2 m/s2,c=1.7 mis and x and r are in SI units. What is the instantancous acceleration of the object when-0.7 s?C.4.6 mis?D. 13 m/s?A. -13 m/s?B. 2.9 mis24. The velocity of an object as a function of time is given by v) - 2.00 m/s+ (3.00 m/s) t- (1.0 mis2)12. Determine the instantaneous acceleration of the object at time /- 5.00 s.A. 8.00 m/s2C.2.00 m/s2D. 0.00 mis2B. -7.00 m/s25. The velocity of an object is given by the expression v() =3.00 m/s + (4.00 m/s3) 2, where t is inseconds. Determine the position of the object as a function of time if it is located at x= 1.00 m atC.(4.00 m/s)D. 1.00 m + (3.00 m/s)+(1.33 mis)time 0.000 s.A. (4.00 m/s) r+ 1.00 mB. (3.00 m/s) + (1.33 m/s3)6. A car accelerates from 10.0 mis to 30,0 mis at a rate of 3.00 m/s?. How far does the car travel whileaccelerating?A. 80.0 mв. 133 mC. 226 mD. 399 m7. A dragster starts from rest and travels 1/4 mi in 6,70 s with constant acceleration. What is itsvelocity when it erosses the finish line?A. 296 mi/hB. 269 mi/hC. 188 mi/hD. 135 mi/h8. Ball A is dropped from rest from a windew. At the same instant, hall B is thrown downward; andbull Cis thrown upward from the same window. Which statement conceming the balls isnecessarily true if air resistance is neglectedA. All three balls strike the ground at the same time.B. All three balls have the same velocity at any instant.C. All three balls have the same acceleration at any instant.D. At some instant after it is thrown, the acceleration of ball C is zero.9. A rock is thrown vertically upward from the surface of the canth. The rock rises to some maximumheight and falls back toward the surface of the earth. Which one of the following statementsconcerning this situation is true if air resistance is neglected?A. As the ball rises, its acceleration vector points upward,H. The hall is a freely falling body for the duration of its flight.C. The acceleration of the ball is zero when the ball is at its highest point.D. The speed of the ball is negative while the ball falls back toward the carth.10. A briek is dropped from rest from a height of 4.9 m. How long does it take the brick to reach theground?A. 0.6sB. 1.0C. 1.2sD. 2.0

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Description: Read the following questions carefully. Write the answer, in capital letters, before the mumber.1. When can we be certain that the average velocity of an object is always equal to its instantaneousvelocity?A. AlwaysB. NeverC. only when the velocity

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6. A car accelerates from 10.0 mis to 30.0 mis at a rate of 3.00 nvs, How far does the car travel while accelerating? A. 80.0 m B. 133 m C. 226 m D. 399 m 7. A dragster starts from rest and travels 14 mi in 6.70 s with constant acceleration. What is its velocity when it erosses the finish line? A. 296 mi/h B. 269 mi/h C. 188 mi/h D. 135 mih

6. A car accelerates from 10.0 mis to 30.0 mis at a rate of 3.00 nvs, How far does the car travel while accelerating? A. 80.0 m B. 133 m C. 226 m D. 399 m 7. A dragster starts from rest and travels 14 mi in 6.70 s with constant acceleration. What is its velocity when it erosses the finish line? A. 296 mi/h B. 269 mi/h C. 188 mi/h D. 135 mih

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Displacement, Velocity and Acceleration

In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.

Linear Displacement

The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.

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