Question

A toy car is moving in a straight line at a speed of 6 cm/s and comes to rest after a minute. How far has it traveled?

• A. $600 \text{ cm}$
• B. $60 \text{ m}$
• C. $360 \text{ cm}$
• D. $360 \text{ m}$

Hint:

Always check units carefully! Conversions like 1 minute = 60 seconds are simple but easily overlooked, leading to wrong answers (like picking 6 cm without converting).

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
We are given the speed of a toy car and the duration it travels before stopping. The phrasing "moving at a speed of 6 cm/s and comes to rest after a minute" strongly implies it moves at a uniform speed for one minute and then stops.
Step 2: Key Formula or Approach:
For uniform motion (constant speed): \[ \text{Distance} = \text{Speed} \times \text{Time} \] Step 3: Detailed Explanation:
Given values:
Speed ($v$) = $6 \text{ cm/s}$
Time ($t$) = $1 \text{ minute} = 60 \text{ seconds}$.
Substitute the values into the distance formula: \[ \text{Distance} = 6 \text{ cm/s} \times 60 \text{ s} = 360 \text{ cm} \] *(Note: If the question meant uniform deceleration from 6 cm/s to 0 cm/s over 60 seconds, the distance would be $\frac{6+0}{2} \times 60 = 180 \text{ cm}$. Since 180 cm is not among the options, the uniform speed interpretation is uniquely correct).*
Step 4: Final Answer:
The toy car has traveled $360 \text{ cm}$.