Chapter 10, Problem 1RQ

Which of the following is not a simple machine?

1. a. Pulley
2. b. Lever
3. c. Wedge
4. d. Automobile

To determine

Find the correct option, which of the following one is not a simple machine.

Answer to Problem 1RQ

The right option is $\underset{\_}{\text{d}\text{. Automobile}}$.

Explanation of Solution

Machines can be utilized for energy transfer, multiply speed, and multiply force.

Pulley, lever, wedge are simple machines and an automobile is the compound machine. The combination of many small machines is known as compound machine.

Therefore, option “d” is correct.

Conclusion:

Hence, the correct option is $\underset{\_}{\text{d}\text{. Automobile}}$.