1.

Off the particle is moving along a straight linegiven by the relation x = 2 - 3t +4t? where s isin cms., and t in sec. Its average velocityduring the third sec ishis​

Answer»

Bonjour!

ACCORDING to the question

A particle is moving along a straight LINE given by the relation;

s = 2 - 3t + 4t³

Now, we have to find the average velocity, for this we will differentiate s with respect to t;

After differentiating ds/dt we get 6t² - 3

Now, we have to find average speed at t = 3 sec

So, we will put the value in ds/dt;

=> 6t² - 3 = 6(3)² - 3

=> 6 × 9 - 3

=> 54 - 3

=> 51

So, average speed at t = 3 is 51 m/s

Hope this helps...:)


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