Question

Go to the following website: ‪Forces and Motion: Basics‬ and select Force, Values, Masses, Speed and Stopwatch.

1. With the 50kg box on the skateboard, apply 50N of force to the box for 10 seconds. Using the formula F=MxA solve for the Acceleration.





(2 points)
0 / 10000 Word Limit
Go to the following website: ‪Forces and Motion: Basics‬ and select Force, Values, Masses, Speed and Stopwatch.

1. With the 50kg box on the skateboard, apply 100N of force to the box for 10 seconds. Using the formula F= M x A solve for the Acceleration.

(2 points)
0 / 10000 Word Limit
Go to the following website: ‪Forces and Motion: Basics‬ and select Force, Values, Masses, Speed and Stopwatch.

1. Remove the 50kg box on the skateboard and place the mystery box (with ? mark) on the skateboard. Apply 100N of force to the box for 10 seconds. Using the formula F=M x A solve for the mass. (hint = you will need to use the acceleration formula to solve for the A variable A = Vf - Vi / T)

(3 points)

Answer 1

1) With 50 kg and 50 N:
A = F / M = 50 N / 50 kg = 1.0 m/s²

2) With 50 kg and 100 N:
A = F / M = 100 N / 50 kg = 2.0 m/s²

3) Mystery box with 100 N applied for 10 s:
Measure initial velocity Vi and final velocity Vf from the stopwatch/velocity readout.
Compute acceleration: A = (Vf − Vi) / T (here T = 10 s).
Then mass: M = F / A = F · T / (Vf − Vi).

Example: if Vi = 0 and Vf = 4.0 m/s, A = (4.0 − 0)/10 = 0.4 m/s², so M = 100 N / 0.4 m/s² = 250 kg.

If you give me the Vf (and confirm Vi), I can compute the exact mass for you.