Question Detail

PHY 101 PHY 101 Past Questions Objective Question

Question

Three kids in a parking lot launch a rocket that rises into the air along a 380 m long arc in 40 s. Determine its average speed.
Options
A Indeterminate
B 9.5 m/s
Correct Answer
C 10.5 m/s
D 42 m/s
Correct Answer

Option B is the correct answer.

Detailed Explanation

Average speed is total distance divided by time: 380 m / 40 s = 9.5 m/s.

Hint

Average speed is a scalar quantity: total path length over time.

Question Info