You are standing 30 m from a window that is 30 m off the ground. your friend tries to toss you something, but only throws it straight up. if you start from rest and have a maximum acceleration of 2m/s^2, what is the minimum initial velocity that your friend could have thrown the object to enable you to catch it?

The minimum initial velocity is 21.37 m/s.

Explanation:

Given that,

Distance = 30 m

Acceleration = 2 m/s²

We need to calculate the time

Using equation of motion

Put the value into the formula

We need to calculate the minimum initial velocity

Again using second equation of motion

Put the value into the formula

Hence, The minimum initial velocity is 21.37 m/s.

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.

it is called kinetic energy