Part a)
At t = 0 the position of the object is given as

At t = 2

so displacement of the object is given as

so average speed is given as

Part b)
instantaneous speed is given by


now at t= 0

at t = 1


at t = 2

Part c)
Average acceleration is given as



Part d)
Now for instantaneous acceleration
As we know that

at t = 0

at t = 1

now we have

At t = 2 we have



<em>so above is the instantaneous accelerations</em>
Momentum definition: the quantity of motion of a moving body, measured as a product of its mass and velocity.
Impulse definition: change of momentum of an object when the object is acted upon by a force for an interval of time
These are the definitions.
Hope this helps!
- Melanie
Answer:
he expected a fire to happen I think