Hi there!
Recall the following relationships:
W = Work (J)
U = Potential Energy (J)
m = mass (kg)
g = acceleration due to gravity (9.8 m/s²)
h = height (m)
t = time (s)
Begin by calculating the work:
Now, divide by the time to solve for power:
**W is the unit for power (Watts). Be careful not to get the two confused.
Answer:
This is the answer bro hope it will help you
Answer:
Speed, v = 5 m/s
Explanation:
We have,
The length of the football field, l = 100 m
A person takes 20 seconds to run its length.
It is required to find the speed of the person with which he should run. The distance covered divided by time taken is called its velocity.
So, the speed of the person is 5 m/s.
Answer:
223.2
Explanation:
126.3851 + 7.2 + 73.607 + 15.98 = 223.1721
When adding/subtracting, round to the fewest decimal places. 7.2 has 1 number after the decimal point, so we'll round our answer to 223.2.
Tennis ball and bowling ball would hit the ground at the same time