Answer:
64.73 Watts
Step-by-step explanation:
We are given;
- Work done by the swimmer = 3,560 J
- Time, t = 55 seconds
We are required to calculate the power of the swimmer;
- We need to know that power is the rate of doing work
- That is, Power = Work done ÷ time
Therefore;
Power of the swimmer = 3,560 Joules ÷ 55 seconds
= 64.727 Watts
= 64.73 Watts
Thus, the power output of the swimmer is 64.73 watts
Answer:
B i think!
Step-by-step explanation:
Answer:
1.73
Step-by-step explanation:
Car A is moving at a speed of 25 m/s east relative to Car B.
Let O denote an observer. Then
where 
denotes the velocity of a body X relative to another body Y. We're told that
and
where we take east to be to the positive direction. Then
Answer:the answer is D
Step-by-step explanation:
