Question

a particle moving with an initial velocity of 5.0 m/s is subjected to a uniform acceleration of -2.5 m/s2 . find the displacement in next 4.0 sec .​

Answer 1

Answer:

s = 0

Explanation:

s=ut+1/2at^2

s= 5×4 + 1/2× -2.5×(4)^2

s= 20 + 1/2× -40

s= 20 + (-20)

s= 0

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Answer 2

Answer:

We know that :

S= ut+1/2at^2

where S is the displacement

Putting values in this equation :

S = 5×4 + 1/2 × -2.5× 4

= 15 m

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