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Grade 9Mechanics

Two cars x and y start of to arace on A straight path with initial velocities of 8 metre per second and the 5 metre per second respectively. Car X moves with a uniform acceleration of 1 metre per second square and thecar Y moves with uniform acceleration of 1.1 metre per second square .IFfor both the cast reach the winning post together find the length of the track

Profile image of surendra surendra
7 Years agoGrade 9
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1 Answer

Profile image of Saurabh Koranglekar
7 Years ago
Dear studnet

s = ut + 0.5at^2

equating distances in both cases

8t + 0.5t^2 = 5t+ 0.5*1.1*t^2

t=0;
t=60;

obviously rejecting t=0

we can caluculate distance ie 2280 meters