Explanation:
3 cause the triangle method of addition are connected to tips of one vector
Answer: A device that uses infrared sensors.
Explanation:
Answer:
is the rock's speed.
Explanation:
Momentum is defined as motion possessed by the moving body's mass. Mathematically it a product of mas and velocity of the body.

Given : Mass of rock = m = 1.45 kg
Velocity of the rock = v
Momentum of the rock = P =


is the rock's speed.
Because it reverses an image there for making the objects appear on opposite side