A boy sits in a window of his house 20 meters above the ground. He wants to thro

Question

A boy sits in a window of his house 20 meters above the ground. He wants to throw a ball to his friend on the lawn below him. After careful calculations, he throws the ball with a horizontal velocity of 6 m/s and the ball lands right at his friend’s fee

A.6 meters

B.35 meters

C.12 meters

D.24 meters

A package is dropped from rest from a hot-air balloon 500 meters above the ground. Ignoring air resistance and taking the acceleration due to gravity to be g=10 m/s2, how long does it take for the package to hit the ground?style="font-family: 'helvetica neue', arial, sans-serif;">

A. 13.7 Seconds

B. 10 Seconds

C. 15 Seconds

D. 5 Seconds

During a race, you run east 5 kilometers and then turn north and run another 8 kilometers. What distance did you travel? What is your displacement?style="font-family: 'helvetica neue', arial, sans-serif;">

style="font-family: 'helvetica neue', arial, sans-serif;">

If a car travels 480 kilometers in four hours, then turns around and travels 240 kilometers in the opposite direction in two hours, what is its average speed and velocity during this time?

A. Distance: 9.43 m, Displacement: 9.43 m B. Distance: 3 m, Displacement: 9m C. Distance: 13 m, Displacement: 9.43 m D. Distance: 13 m, Displacement: 13 m

Explanation / Answer

Part A)

Choice C - 12 sec

Part B)
Choice B - 10 sec

Part C)

Choice C - 13 m distance and 9.43 m displacement

Part D)

Choice D - Speed = 120 km/hr and Velocity = 40 km/hr

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