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Teaching: Newton's Laws of Motion
Observe how the block behaves when the cart suddenly stops:
Mechanics
Electromagnetism
Modern Physics
Completed Newton's Laws practice
10 problems • 90% accuracy • 15 mins ago
Studied Electromagnetic Induction
25 minutes • 1 hour ago
Tried Quantum Mechanics simulation
3 experiments • 2 hours ago
What is the mathematical expression of Newton's Second Law?
F = ma
F = net force (N)
m = mass (kg)
a = acceleration (m/s²)
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
ΣF = 0 ⇒ a = 0
1. A book on a table remains at rest until you push it.
2. Passengers in a car lurch forward when the car stops suddenly.