Question

Plz Help:)
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Answer 1

This is a Displacement-Time Graph like a SINE function graph.

Answer 2

How can we tell that where is the velocity & acceleration are positive & negative?????

Answer 3

Plz Help:)

Answer 4

the first derivative or slope of curve at any point will give you velocity and second derivative will give you acceleration..
f(x)=sinx
f'(x) is the velocity
f"(x) is the acceleration

Answer 5

since the velocity=X/t so just put the value of x and t.(you know when they are negtive)

Answer 6

k! but tell me @ujjwal How would the graph of \[f''(x)\] look like?

Answer 7

I mean -sinx

Answer 8

K! thanx:)