Q1. The sun falls on a concave mirror and forms an image 4.5 cm from the mirror. If an object 22 mm high is placed 12.7 cm from the mirror, where will its image be produced?
Q2. The weight of passengers on a roller coaster increases by 60 percent as the car goes through a dip with a 36 m radius of curvature.
What is the car's speed at the bottom of dip?
Q3. A rattle snake can strike with an acceleration equivalent to an increase in speed from 0 to 60mi/h in 1/2 s. if the rattlesnakes head weighs 0.38 lb, what average power does rattlesnake generate during its strike?