Showing posts with label Physics Problem. Show all posts
Showing posts with label Physics Problem. Show all posts
Tuesday, June 28, 2016
Thursday, April 28, 2016
What is the acceleration?
The figure shows the position of a car (black circles) at one-second intervals. What is the acceleration at the time T = 4 s?
Solution:
t=T-1s
x=v₀t+at²/2
40m=v₀∙4s+a∙(4s)²/2
13m=v₀∙1s+a∙(1s)²/2=(v₀+a∙1s/2)∙1s
v₀=13m/s-a∙1s/2
40m=(13m/s-a∙1s/2)∙4s+a∙(4s²)/2 = 52m-2s²∙a+8s²∙a = 52m+6s²∙a
6s²∙a=-12m
a=-2m/s²
t=T-1s
x=v₀t+at²/2
40m=v₀∙4s+a∙(4s)²/2
13m=v₀∙1s+a∙(1s)²/2=(v₀+a∙1s/2)∙1s
v₀=13m/s-a∙1s/2
40m=(13m/s-a∙1s/2)∙4s+a∙(4s²)/2 = 52m-2s²∙a+8s²∙a = 52m+6s²∙a
6s²∙a=-12m
a=-2m/s²
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#Physics #problem #solution #Physicsproblem #PhysicalProblem#problems #PhysicsProblems #PhysicalProblems #ProblemSolution#PhysicsProblemSolution #PhysicalProblemSolution #solutions#ProblemSolutions #PhysicsProblemSolutions #PhysicalProblemSolutions
Wednesday, April 27, 2016
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