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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I WILL RATE HIHG IF YOU ANSWER ALL POINTS PLEASE *13

Transcribed Image Text:1. The solution to Part 1 should have looked like this.
(a)
a =
Consider the sketch below. Adjust the colored sliders so that the corresponding
vo, v, and a vectors are oriented in the correct directions.
t =
Top of cliff
S
Yo
✔m/s
✔m/s²
Y
VO
a
Bottom of cliff
Y
It takes 2.96 s for a rock to hit the ground when it is thrown straight up from a cliff with an initial
velocity of 7.00 m/s. Assume all values are correct upto 3 significant figures.
Vo
V
Using the notation Ay=y-y for displacement, y for position after time t, yo for the initial
position, v for velocity after time t, vo for initial velocity, and a for acceleration, determine
what quantities are known and what are unknown.
• Enter the values of some known quantities below.
• Make sure you account for the signs of the vectors using the coordinate system used in
Part 1.
Enter to 3 significant figures
Vo=
x
a

Transcribed Image Text:Something to think about: Do you need to split the trip into two parts: 1. the rock's journey up, and
2. the rock's journey down? Is it possible to solve without splitting the motion into two parts?
Ay = vt
(vo + v)
2
v=v₁ + at
²= √²+2aAy
Ay=v₁t+1=1/1at²
Ay=
Ду
- t
(c) Calculate the height of the cliff. Note: The height of the cliff should be a positive value.
Enter to 3 significant figures
h=
✔m
(d) How long would it take the rock to reach the ground if it is thrown straight down with the same
speed instead of up?
Enter to 3 significant figures
t =
✔S
Sense-making: Check if the answer in part (d) is less than the time in part (a).
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