Answer:

Explanation:
First let's find the electric potential using y = 22.5:



Then, to find the magnitude of the electric field, we just need to divide the electric potential by the distance y:



Momentum = (mass) x (speed) .
So 907,175 kg-m/s = (36,287 kg) x (speed)
Divide each side by (36,287 kg):
Speed = (907,175 kg-m/s) / (36,287 kg)
<em>Speed = 25 m/s</em>
That's the truck's <em>speed</em>. We can't do anything that involves the truck's <em>velocity,</em> because we don't know what direction the truck is moving.
Answer:

Explanation:
Given that,
An object starts from rest at the origin (x₀ = 0) and travels in a straight line with a constant acceleration (a = constant).
The relation between the position (x) and time (t) is given by :

Let v is the velocity of the object.



Let a is the acceleration of the object. It is given by :



So, the acceleration of the object is
. Hence, this is the required solution.
Answer:
91.21
Explanation:
Kinetic energy =1/2 mv2 substitute the values I. E 1/2 *1 *4.5^2= 91.21