1.A ball is thrown vertically upward at 30 m/s. What is the highestpoint for the ball to reach after it was thrown? Neglect airresistance(A) 1.5 m(C) 46 m(B) 3.1 m(D) 92 m2. At time t=0s, an object is observed at x = 0 m; and its positionalong the x axis follows this expression: x= -3t+t, where theunits for distance and time are meters and seconds,respectively. What is the object's displacement AX between t =1.0s and t=3.0 s?(A) +2.0m(C)+22 m(B) +20 m(D) +18 mIf a particle's position is given by the expression x(t) = 3.4t -5.4t meters, what is the acceleration of the particle at t = 5 sP(A) 1.02 m/s(C) 102 m/s²(B) 3.4 m/s3.4(D) 18.1 m/sA motorist makes a trip of 180 km. For the first 90 km she drivesat a constant speed of 30kph. At what constant speed must shedrive the remaining distance if her average speed for the entiretrip is to be 40 kph?(A) 50 kph(C) 70 kph(D) 80 kph5. Starting from rest, a particle confined to move along a straightline is accelerated at a rate of 5.0 m/s. Which one of thefollowing statements accurately describes the motion of thisparticle?(B) 60 kph(A) The particle travels 5.0 m during each second.(B) The particle travels 5.0 m only during the first second.(C) The speed of the particle increases by 5.0 m/s during eachsecond(D) The acceleration of the particle increases by 5.0 m/sduring each second.6. A car, starting from rest, accelerates in a straight-line path ata constant rate of 2.5 m/s. How far will the car travel in 12seconds?(A) 48m(8) 30 m(C) 120 m(D) 180 m7. Carl Lewis set a world record for the 100.0-m run with a time of9.86 s. If after reaching the finish line, Mr. Lewis walkeddirectly back to his starting point in 90.9 s, what is themagnitude of his average velocity for the 200.0 m?(C) 1.10 m/s(D) 10.1 m/s(B) 198 m/s8. A brick is dropped from rest from a height of 4.9 m. How longdoes it take the brick to reach the ground?(C) 2.0s(D) 1.2 s(4)0.6s(B)10s

Given data: Initial velocity (u) = 30 m/s, upward Air resistance is negligible Required: The…

Answered: A ball is thrown vertically upward at…

A ball is thrown vertically upward at 30 m/s. What is the highest point for the ball to reach after it was thrown? Neglect air resistance (A) 1.5 m (B) 3.1 m (C) 46m (D) 92 m

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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Question

1.
A ball is thrown vertically upward at 30 m/s. What is the highest
point for the ball to reach after it was thrown? Neglect air
resistance
(A) 1.5 m
(C) 46 m
(B) 3.1 m
(D) 92 m
2. At time t=0s, an object is observed at x = 0 m; and its position
along the x axis follows this expression: x= -3t+t, where the
units for distance and time are meters and seconds,
respectively. What is the object's displacement AX between t =
1.0s and t=3.0 s?
(A) +2.0m
(C)+22 m
(B) +20 m
(D) +18 m
If a particle's position is given by the expression x(t) = 3.4t -
5.4t meters, what is the acceleration of the particle at t = 5 sP
(A) 1.02 m/s
(C) 102 m/s²
(B) 3.4 m/s
3.
4
(D) 18.1 m/s
A motorist makes a trip of 180 km. For the first 90 km she drives
at a constant speed of 30kph. At what constant speed must she
drive the remaining distance if her average speed for the entire
trip is to be 40 kph?
(A) 50 kph
(C) 70 kph
(D) 80 kph
5. Starting from rest, a particle confined to move along a straight
line is accelerated at a rate of 5.0 m/s. Which one of the
following statements accurately describes the motion of this
particle?
(B) 60 kph
(A) The particle travels 5.0 m during each second.
(B) The particle travels 5.0 m only during the first second.
(C) The speed of the particle increases by 5.0 m/s during each
second
(D) The acceleration of the particle increases by 5.0 m/s
during each second.
6. A car, starting from rest, accelerates in a straight-line path at
a constant rate of 2.5 m/s. How far will the car travel in 12
seconds?
(A) 48m
(8) 30 m
(C) 120 m
(D) 180 m
7. Carl Lewis set a world record for the 100.0-m run with a time of
9.86 s. If after reaching the finish line, Mr. Lewis walked
directly back to his starting point in 90.9 s, what is the
magnitude of his average velocity for the 200.0 m?
(C) 1.10 m/s
(D) 10.1 m/s
(B) 198 m/s
8. A brick is dropped from rest from a height of 4.9 m. How long
does it take the brick to reach the ground?
(C) 2.0s
(D) 1.2 s
(4)0.6s
(B)10s

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