Question

if the body moves on straight line and it's distance given by time function of s(t) = 4t + 6t²- t² find instantaneous velocity? (t = 3s)​

Answer 1

57 m/s

Step-by-step explanation:

Sub. 3 into the equation for t and get the answer.

s(3)=4(3)+ 6(3)²- (3)²

57=