Apentix/AP Physics 1/Unit 2: Dynamics/Question
AP Physics 1hardmcq1 pt

Two blocks (3 kg and 5 kg) are connected by a string on a frictionless surface. A force of 40 N is applied to the 5 kg block. What is the tension in the string?

A.15 N
B.40 N
C.25 N
D.20 N

Explanation

Core Concept

Acceleration of system: a = 40/(3+5) = 5 m/s². Tension accelerates only the 3 kg block: T = 3(5) = 15 N.

Correct Answer

A15 N

Practice more AP Physics 1 questions with AI-powered explanations

Practice Unit 2: Dynamics Questions →
    Two blocks (3 kg and 5 kg) are connected by a string on a fr... | AP Physics 1 | Apentix