Velocity of uniformly variable motion
Answers are for parents and teachers.
1
From rest with a = 5 m/s² for 4 s. Velocity (m/s)?
20
2
υ₀ = 8 m/s, a = 2 m/s², t = 5 s. Velocity (m/s)?
18
3
υ₀ = 30 m/s, a = −5 m/s². Stopping time in seconds?
6
4
Make a table of velocities at 0, 1, 2, 3 s from rest with a = 1 m/s².
0; 1; 2; 3 m/s.
5
Why is the velocity graph a slanted straight line?
Because υ = υ₀ + at depends linearly on t: velocity changes equally in equal times.