When the Penguins Hitch a Ride Behind the Taxi, the Taxi Accelerates Away at (A)

Name ______

The “Physics” Penguins of Madagascar in A Christmas Caper

1. Rico carves a Christmas tree out of a block of ice in 1.2 s. If he did 850 J of work completing the tree, what was his power? If he applied 100 N of force, what speed did he wield the knife?

2. After hitching ride behind the taxi, the penguins launch off a frictionless ramp at an angle of 30° above the horizontal, with an initial speed of 15.3 m/s, what is the highest point of their trajectory?

3. When the penguins touch down, their initial speed is 5.0 m/s. If Skipper, having a mass of 35 kg, comes to rest with a constant rate of acceleration in 21 meters, what is the rate of deceleration and what is the coefficient of kinetic friction between Skipper’s fur and the snow?

4. Upon entering the hotel, the penguins run at the elevator door in their snowman (combined mass of 100 kg). The skipper “steps on it,” moving at a velocity of 0.25 m/s. If takes 0.12 seconds for the snowman to stop as it hits the elevator door, what is the contact force exerted by the elevator door?

5. When Rico turns into a “mint gatling gun,” he fires mints at a frequency of 4 mints/second, leaving his mouth at a rate of 35 m/s. What distance separates the mints the instant they leave his mouth?