A wooden block slides 90cm in half a minute. Find it's mean speed in cm/s
3
900
To find the mean speed of the wooden block in cm/s, we need to use the formula for mean speed, which is:
Mean Speed = Distance / Time.
In this case, the distance traveled by the wooden block is 90 cm and the time taken is half a minute, which is equal to 30 seconds.
So, to find the mean speed, we need to divide the distance by the time:
Mean Speed = 90 cm / 30 s.
Now, we can simply perform the division to find the answer:
Mean Speed = 3 cm/s.
Therefore, the mean speed of the wooden block is 3 cm/s.