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Question

s=34t+5t2 is the distance traveled by an item along a straight line in time t, and the beginning velocity of the object is


A

3units

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B

3units

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C

4units

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D

4units

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Solution

The correct option is D

4units


Step: 1 Given data:

The given equation of motion is, s=34t+5t2

where s=distance, and t=time

Step: 2 Formula used:

The velocity of the particle v=dsdt

Step: 3 :Calculate velocity:

s=34t+5t2

v=dsdt=d3-4t+5t2dt=-4+10t

Step 3: Calculating the initial velocity:

For initial velocity t=0

vinitial=-4+100=-4

Hence option D is correct


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