Question : The distance travelled by an object along a straight line in time 𝑡 is given by 𝑠 = 3 − 4𝑡 + 5𝑡 2 , the initial velocity of the object is
(A) 3 unit
(B) -3 unit
(C) 4 unit
(D) -4 unit
Answer : option (D)
Solution :
The distance travelled by an object along a straight line in time 𝑡 is given by 𝑠 = 3 − 4𝑡 + 5𝑡 2 , the initial velocity of the object is
with
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