Question

The displacement of a particle is given by x = (t – 2)^2 where x is in meters and t in seconds. What is the speed or the body when it is at origin?

Answer 1

Answer:

ok

Explanation:

The distance travelled is given by x=(t−2)

2

=t

2

–4t+4

As velocity is given by v=

dt

dx

v=2t−4

Distance covered=∫∣v∣dt

=∣t

2

–4t∣

=4t−t

2

for t=0to2

=t

2

−4tfor t=2to4

=8units