2021 F = ma Exam — Question 12 — Physics Guide

Home Practice Mock Tests Problems Profile About

0 Days 0 XP Sign in

Back to Problems

F = ma (11–17)

Dynamics

FMA-2021-12 · 2021 F = ma (AAPT)

2021 F = ma Exam — Question 12

An object of mass m = 1 kg is attached to a platform of mass M = 4 kg with a spring of spring constant k = 400 N/m. There is no friction between the object and the platform, and the coefficient of static friction between the platform and the ground is µ = 0.1. The object is placed at its equilibrium position, and then given a horizontal velocity v. v k m M For what v will the platform never slip on the ground? — Source: Question 12, 2021 F = ma Exam, © 2021 American Association of Physics Teachers (AAPT) and the U.S. Physics Team. Adapted by PhysicsTrainer: reformatted into a separate question and answer choices for online multiple-choice practice; any shared setup from nearby questions is repeated here. Not affiliated with or endorsed by AAPT or the U.S. Physics Team.

Physics Guide

Free AP Physics 1/C (Mech) and F=ma training. Built by students, for students.

Problem Bank About

F = ma problems are © the American Association of Physics Teachers (AAPT) and the U.S. Physics Team, the original source, and are used with permission. Problems shown here are adaptations: they have been reformatted by Physics Guide into separate question and answer-choice pieces for online multiple-choice practice. Physics Guide is an independent student project and is not affiliated with, endorsed by, operated by, or supported by AAPT, F = ma, USAPhO, or the U.S. Physics Team.

AP Physics 1 and AP Physics C (Mech) problems are adapted from OpenStax College Physics for AP® Courses 2e and University Physics Volume 1, © OpenStax (Rice University), licensed under CC BY 4.0. Problem text is reproduced exactly; correct answers come from the OpenStax answer keys. For written-answer problems, the incorrect answer choices were written by Physics Guide. Physics Guide is not affiliated with or endorsed by OpenStax or the College Board.