Question

a partical moving with an initial velocity of 5 m/s is subjected to a uniform acceleration of -2.5m/s. find the displacement in the next 4s. ​

Answer 1

S=ut +1/2at2

u=5m/s

a=-2.5m/s2

so, by using the formula we get

S= 5×4+(-2.5)×(4)2

=20-40

-20m

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