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AP Physics 1 2.4.A: Newton’s First Law

Practise AP Physics 1 2.4.A by connecting zero net force to rest or constant velocity, then resolving balanced forces in one and two dimensions.

Syllabus
Effective Fall 2024
Course
AP Physics 1: Algebra-Based

Exam points

  • Set the vector sum of forces to zero for objects at rest or moving at constant velocity.
  • Resolve weight, tension, normal and friction forces to test equilibrium on inclined planes.

2.4.A—Describe the conditions under which a system’s velocity remains constant question 1

[Maximum number: 1]

Three identical blocks, A, B, and C, slide on three dif ferent rough ramps, 1, 2, and 3, respectively. Ramp 3 is steeper than Ramp 2, which is steeper than Ramp 1, as shown. The blocks slide with constant velocities. Which block, if any, experiences the greatest net force?

A

Block A

B

Block B

C

Block C

D

All blocks experience the same net force.

Figure for Question 2.4.A—Describe the conditions under which a system’s velocity remains constant question 1 — AP Physics 1: Algebra-Based
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