Newton‘s 2nd Law: Example, 2 Dimensions Part 2
About the Lecture
The lecture Newton‘s 2nd Law: Example, 2 Dimensions Part 2 by Jared Rovny, PhD is from the course Force.
Included Quiz Questions
A laborer pulls a 100 kg container with a force of 80 N. If the applied force has an angle of 60° to the horizontal (or x-direction), what would be the x and y components of the force vector?
- Fₓ = 40 N, Fᵧ = 70 N
- Fₓ = 7 N, Fᵧ = 40 N
- Fₓ = 70 N, Fᵧ = 40 N
- Fₓ = 40 N, Fᵧ = 100 N
- Fₓ = 50 N, Fᵧ = 100 N
A force of 100 N applies to a spaceship of mass 1000 kg at rest. The force vector makes a 30º angle with the x-axis. What is the velocity and speed of it after 10 minutes?
- vₓ = 52 m/s , vᵧ = 30 m/s , v = 60 m/s
- vₓ = 33 m/s , vᵧ = 50 m/s , v = 60 m/s
- vₓ = 55 m/s , vᵧ = 25 m/s , v = 60 m/s
- vₓ = 10 m/s , vᵧ = 40 m/s , v = 40 m/s
- vₓ = 45 m/s , vᵧ = 70 m/s , v = 80 m/s
You accelerate a 100 kg laboratory cart with 1 N along the x-direction, starting from rest. Now a supplementary force of 0.5 N acts on it at an angle of 20 degrees from the x-axis. What will be its velocity after 15 minutes?
- vₓ= 13 m/s, vᵧ = 1.5 m/s
- vₓ = 1.5 m/s, vᵧ = 13 m/s
- vₓ = 15 m/s, vᵧ= 13 m/s
- vₓ = 11 m/s, vᵧ = 13 m/s
- vₓ = 1.5 m/s, vᵧ = 1.3 m/s
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Author of lecture Newton‘s 2nd Law: Example, 2 Dimensions Part 2
Jared Rovny, PhD
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