Question

At a certain instant an object is moving to the right with speed 1.0 m/s and has a constant acceleration to the left of 1.0 m/s2. At what later time will the object momen- tarily be at rest?

Answer 1

Step-by-step explanation:

Given that,

Initial speed of the object, u = 1 m/s

Acceleration of the object,
`a=-1\ m/s^2`

We need to find the time when the object comes at rest (v=0). Let it is given by :

`t=(v-u)/(a)`

`t=(0-1\ m/s)/(-1\ m/s^2)`

t = 1 second

So, the object will comes to rest at 1 second. Hence, this is the required solution.