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Answers
Answer:
4 ans:Newton's first law
5 ans: I think its balanced force
Answer:
Q4. Newton's first law
Q6. Force
Q5. balanced
Q8. knowing the amount of force and the length of time that force is applied to an object will tell you the resulting change in its momentum.
They are related by the fact that force is the rate at which momentum changes with respect to time (F= dp /dt ).Note that if p = mv and m is constant , then F = dp /dt =m*dv /dt =ma.
Q9. 200 kg
Explanation:
Q4. A/c to Newton's first law of motion , every body continuous in its state of rest or uniform motion unless an external force acts on it.This shows that a body , by itself , cannot change its state of rest or uniform motion.
Q5. Because it's velocity doesn't changes.
Q9. An object with a greater mass will have more inertia as it takes more force to change their motion.
Q10. Newton's third law of motion :Every action has an equal and opposite reaction . ... This backward and an equal reaction on the fireman makes him unstable and finds it difficult to hold the hose. Thus , due to the opposite reaction of the water with high velocity a fireman finds it difficult to hold the hose.