how would I calculate the work done on the block in problem 3 using two methods  A. definition of work and B. work-kinetic Energy theorem

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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how would I calculate the work done on the block in problem 3 using two methods 

A. definition of work and B. work-kinetic Energy theorem 

3. A 15 ha block is pushed from rest acrO ss the
floor with a force of 51 N. A.) what is the
acceleratian of the biock? B.) After traveling
12 m, Wh at is the velocity ot the
block?
Given
mass is : m =15kg
Initial Speed is = U= a
Force is : F =SIN
(a)
The acceleration of the block is:
a=DF
SIN
= 3. ५n/६2
(B)
The velocity af black after traveling
v²=u? + 2as
S=12m is:
%3D
v'=0²+2(3.4mis?) (12m)
v²=D81.6m²/s?
v=9.033 mis
Transcribed Image Text:3. A 15 ha block is pushed from rest acrO ss the floor with a force of 51 N. A.) what is the acceleratian of the biock? B.) After traveling 12 m, Wh at is the velocity ot the block? Given mass is : m =15kg Initial Speed is = U= a Force is : F =SIN (a) The acceleration of the block is: a=DF SIN = 3. ५n/६2 (B) The velocity af black after traveling v²=u? + 2as S=12m is: %3D v'=0²+2(3.4mis?) (12m) v²=D81.6m²/s? v=9.033 mis
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