Forces in Connected Objects (Systems) Video Lessons

Concept

Problem: A 1200kg car pushes a 2100kg truck that has a dead battery to the right. When the driver steps on the accelerator, the drive wheels of the car push against the ground with a force of 4500N . a. What is the magnitude of the force the car applies to the truck? b. What is the acceleration of the truck?

FREE Expert Solution

From Newton's second law:

$\overline{){\mathbf{F}}{\mathbf{=}}{\mathbf{m}}{\mathbf{a}}}$

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Problem Details

A 1200kg car pushes a 2100kg truck that has a dead battery to the right. When the driver steps on the accelerator, the drive wheels of the car push against the ground with a force of 4500N .

a. What is the magnitude of the force the car applies to the truck?

b. What is the acceleration of the truck?