A 90 kg body is taken to a planet where the acceleration due to
2 answers:
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Answer:
1440 W
Explanation:
First of all, we can find the total displacement of the sled, which is given by
where
a = 0.08 m/s^2 is the acceleration
t = 1 min = 60 s is the time
Substituting,
Now we can find the wotk done on the sled, equal to the product between force and displacement:
And finally we can fidn the average power, which is the ratio between the work done and the time taken:
The acceleration of the object if the net force is decreased = 0.13 m/s²
<h3>Further explanation</h3>Given
A net force of 0.8 N acting on a 1.5-kg mass.
The net force is decreased to 0.2 N
Required
The acceleration of the object if the net force is decreased
Solution
Newton's 2nd law :
The mass used in state 1 and 2 remains the same, at 1.5 kg
- state 1
ΣF=0.8 N
m=1.5 kg
The acceleration, a:
- state 2
ΣF=0.2 N
m=1.5 kg
The acceleration, a: