Answer:
The strength of gravity on Venus is 8.91m/s².
Explanation:
The strength of gravity on a planet is given by the following formula:
g = w/m
In which w is the weight, in newtons, and m is the mass, in kg.
In this problem, we have that:
Textbook weighs 19.6 newtons on Venus.
This means that
mass of 2.2 kg
So m = 2.2
What is the strength of gravity on that planet?
g = w/m = 19.6/2.2 = 8.91
The strength of gravity on Venus is 8.91m/s².
Answer:
12500W
Explanation:
Given parameters:
Work done = 250000J
Time taken = 20s
Unknown:
Power of the crane = ?
Solution:
Power is the defined as the rate at which work is being done;
Mathematically;
Power =
insert the parameters and solve;
Power = = 12500W