If the KE is increased by 4 times what will be the velocity

velocity would doubled

Explanation:

As we know the k.e relation is given by

K.E= 0.5 m v^2

Keeping the mass same and increasing the k.e 4 times makes the velocity double.

the focus of lesson 1 is newton's first law of motion - sometimes referred to as the law of inertia. newton's first law of motion is often stated as. an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

explanation:

b mirrors submit a iisner? e. for which optical devices does d sometimes have a positive value? o a a and b o b. a and c o c. b and d 0 d. b and cb