A group of animals have short, narrow legs that are partly webbed. In which environment do these animals MOST LIKELY live? A) de
2 answers:
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Answer:
Explanation:
Given that,
Initial velocity, u = -5 m/s
Final velocity, v = -22 m/s
Time, t = 3s
We need to find the acceleration of the car. The formula of it is given by :
Acceleration,
So, the acceleration of the car is .
Answer:
<em>A) 7.37 x 10^-4 N</em>
<em>B) The resultant force will be towards the -x axis</em>
Explanation:
The three masses have mass = 3500 kg
For the force of attraction between the mass at the origin and the mass -100 cm away:
distance r = 100 cm = 1 m
gravitational constant G= 6.67×10^−11 N⋅m^2/kg^2
Gravitational force of attraction =
where G is the gravitational constant
m is the mass of each of the masses
r is the distance apart = 1 m
substituting, we have
=
= 8.17 x 10^-4 N
For the force of attraction between the mass at the origin and the mass 320 cm away
distance r = 320 cm = 3.2 m
=
substituting, we have
=
= 7.98 x 10^-5 N
Resultant force = (8.17 x 10^-4 N) - (7.98 x 10^-5 N) = <em>7.37 x 10^-4 N</em>
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<em>B) The resultant force will be towards the -x axis</em>
Answer:
6.47385 N
Explanation:
m = Mass of stone = 0.538 kg
t = Time taken to hit the rock = 0.964 seconds
v = Velocity of rock = 11.6 m/s
Force is given by
The magnitude of the average force experienced by the boat during this process is 6.47385 N