cause an object to accelerate in a direction opposite to the unbalanced force
Explanation:
An unbalanced force is defined as any force that causes an object to accelerate in a direction opposite to the unbalanced force.
The unbalanced force is the net or resultant force describe in newton's second law of motion.
In the first law, it is the external force that causes the motion of a body to change.
Unbalanced forces can cause body to either accelerate in the direction of the force or in an opposite direction of the force.
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Answer: Option d
Explanation:
According to Newton's third law, for every force "P" that is applied on an object there is a force -P that has the same maginitud that "P" and opposite direction.
In other words "for every action there is an equal and opposite reaction"
For example, if Object D applies a force "P" on an object B, then object B will make a force -P on object D.
This force is called the reaction force.
Therefore when the swimmer pushes the wall, then the wall pushes the swimmer with a force of the same magnitude that is called the reaction force.
Hi again!
The correct answer for the kinetic energy of the car is 484,000 joules.
We can find this by using the formula. The formula for kinetic energy is m
Knowing this we can fill in the formula using the info we were provided. Doing this we get: (2,000 · )
= 484
2,000 · 484 = 968,000
· 968,000 = 484,000
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Question 9: Anthony has more power than Angel
We can see Anthony gets done with the same work quicker than Angel. But they did the same amount of work, just Anthony was quicker. Power is the rate at which work is done. Knowing this we can see the answer is Anthony has more power than Angel.
I hope those answers help u!
Good luck! :)
Answer:
Explanation:
The speed of the rocket is given the Tsiolkovsky's differential equation, whose solution is:
Where:
- Initial speed of the rocket, in m/s.
- Exhaust gas speed, in m/s.
- Initial total mass of the rocket, in kg.
- Current total mass of the rocket, in kg.
Let assume that fuel is burned linearly. So that,
The initial total mass of the rocket is:
The fuel consumption rate is:
The function for the current total mass of the rocket is:
The speed function of the rocket is:
The speed of the rocket at given instants are: