Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 1: Q73P (page 63)

Sam heaves a 16-lb shot straight up, giving it a constant upward acceleration from rest of 35.0 m/s2 for 64.0 cm. He releases it 2.20 m above the ground. Ignore air resistance. (a) What is the speed of the shot when Sam releases it? (b) How high above the ground does it go? (c) How much time does he have to get out of its way before it returns to the height of the top of his head, 1.83 m above the ground?

Short Answer

Expert verified

a) Speed of the shot is 3.35 m/s.

b) Height above the ground it goes is 1.83 m.

c) Time required is 0.191 s.

Step by step solution

01

Identification of given data

Acceleration a=35m/s2

Distance d=64cm=0.64m

02

Calculation for the speed

As we know that speed is the distance covered per unit time

s=dts=0.640.191s=3.35m/s

03

Calculation for the height above the ground it goes

Height above the ground it goes is 1.83 m.

04

Calculation for the time required

d=ut+12at20.64=0+12×35×t2t=0.191s

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

A Simple Reaction-Time Test.A meter stick is held vertically above your hand, with the lower end between your thumb and first finger. When you see the meter stick released, you grab it with those two fingers. You can calculate your reaction time from the distance the meter stick falls, read directly from the point where your fingers grabbed it. (a) Derive a relationship for your reaction time in terms of this measured distance, d. (b) If the measured distance is 17.6 cm, what is your reaction time?

A swimming pool is 5.0 m long, 4.0 m wide, and 3.0 m deep. Compute the force exerted by the water against (a) the bottom and (b) either end. (Hint: Calculate the force on a thin, horizontal strip at a depth h, and integrate this over the end of the pool.) Do not include the force due to air pressure.

You take an empty glass jar and push it into a tank of water with the open mouth of the jar downward, so that the air inside the jar is trapped and cannot get out. If you push the jar deeper into the water, does the buoyant force on the jar stay the same? If not, does it increase or decrease? Explain.

Equation (12.7) shows that an area ratio of 100 to 1 can give 100

times more output force than input force. Doesn’t this violate conservation

ofenergy? Explain.

A certain fuel-efficient hybrid car gets gasoline mileage of 55.0 mpg (miles per gallon). (a) If you are driving this car in Europe and want to compare its mileage with that of other European cars, express this mileage in km/L (1L = liter). Use the conversion factors in Appendix E. (b) If this car’s gas tank holds 45 L, how many tanks of gas will you use to drive 1500 km?
See all solutions

Recommended explanations on Physics Textbooks

Energy Physics

Read Explanation

Engineering Physics

Read Explanation

Mechanics and Materials

Read Explanation

Thermodynamics

Read Explanation

Conservation of Energy and Momentum

Read Explanation

Rotational Dynamics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free