a wooden block slides 90cm in half amin find it mean speed in cm per seconds

Answer 1

To find the mean speed of the wooden block, you can use the formula for speed:

\[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} \]

Here, the distance the block slides is 90 cm, and the time taken is 0.5 minutes (which you need to convert to seconds).

1. Convert 0.5 minutes to seconds: \[ 0.5 \text{ minutes} = 0.5 \times 60 \text{ seconds} = 30 \text{ seconds} \]

2. Now use the formula with the distance and time: \[ \text{Speed} = \frac{90 \text{ cm}}{30 \text{ seconds}} = 3 \text{ cm/second} \]

So, the mean speed of the wooden block is 3 cm per second.