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Matter In Our Surroundings

Question
CBSEENSC9005766

A racing car has a uniform acceleration of 4 ms-2. What distance will it cover in 10 seconds after start?

Solution
Here comma

Initial space velocity space of space racing space car comma space straight u space equals space 0

R a t e space o f space u n i f o r m space a c c e l e r a t i o n comma space straight a space equals space 4 space ms to the power of negative 2 end exponent

Time space of space travel comma space straight t space equals space 10 space straight s

Using space the space second space equation space of space motion comma space we space have
space space space space space space space space space space space space space straight s space equals space ut plus 1 half at squared
space space space space space space space space space space space space space space space space equals space 0 space cross times space 10 space plus space 1 half cross times space 4 space cross times space left parenthesis 10 right parenthesis squared space
space space space space space space space space space space space space space space space space equals space 200 space straight m.
So, distance travelled by the car in 10 seconds = 200 m