Answered: What is the acceleration of a car that…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter6: Motion In Two Dimensions

Section: Chapter Questions

Problem 91A

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What is the acceleration of a car that from rest in 2 minutes acquires a velocity of 99 miles/hr?. Give the answer in miles/sec. *

If you walk at a constant speed for 5 minutes and cover a distance of 50 meters, what is your speed?. Express the answer in m/s. *

What is the gravitational acceleration the magnitude and direction of an object that is freely moving upwards? *

What is the acceleration of a box of mass 2kg that is pushed with a force of 10N? *

What is the gravitational force that the Earth exerts on you?. No numbers, explain. *

If an object is lying on a table and its weight is 3N, what is the normal force equal to? *

Does your desk exert any gravitational force on you? why?. *

How many radians represent one and a half revolutions?

An object of mass 5 kg moves at a certain speed and thus has a linear momentum. What would be its momentum if the speed was doubled? why? *

What is the work done by the gravitational force while you carry bag horizontally? why? *

What is the unit of work? *

What is the gravitational potential energy of a 1 kg apple hanging from a branch at an altitude of 10 meters?. No units, no points. *

What is the kinetic energy of a car of 1000kg moving at 90km/hr?. No units, no points. *

If the speed of an object is tripled, what happens with its kinetic energy? Explain. *

If an elevated object has a gravitational potential energy of 100J and all of sudden falls down to the ground, what is its gravitational potential energy as soon as it reaches it?, and what is its kinetic energy at this point?. *

How much energy would you consume daily if you kept 3 lightbulbs of 25 watts on all day long?. *

What is the direction of the gravitational acceleration of an object that is freely moving upwards? *

What is the direction of the gravitational acceleration of an object that is freely moving donwards?

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