Asked by Lee
1.A race car has a mass of 707 kg. It starts from rest and travels 42.0 m in 3.0 s. The car is uniformly accelerated during the entire time. What net force is exerted on it?
2.A 4430 kg helicopter accelerates upward at 2.2 m/s2. What lift force is exerted by the air on the propellers?
3.A dragster starts with zero velocity and completes a 404.8 m (0.2530 mile) run in 4.915 s. If the car had a constant acceleration, what would be its acceleration and final velocity?
4.Suppose 70 kg boy and a 50 kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface, as in figure 4-21. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.
5.On Earth, a scale shows that you weigh 645 N.
What is your mass?
What would the scale read on the moon (g = 1.60 m/s2)?
2.A 4430 kg helicopter accelerates upward at 2.2 m/s2. What lift force is exerted by the air on the propellers?
3.A dragster starts with zero velocity and completes a 404.8 m (0.2530 mile) run in 4.915 s. If the car had a constant acceleration, what would be its acceleration and final velocity?
4.Suppose 70 kg boy and a 50 kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface, as in figure 4-21. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.
5.On Earth, a scale shows that you weigh 645 N.
What is your mass?
What would the scale read on the moon (g = 1.60 m/s2)?
Answers
Answered by
bobpursley
I will be happy to critique your thinking on these.
Answered by
Anonymous
a motorcycle accelerates uniformly from rest reaching a speed of 200 mi/hr in 10seconds whats is the acceleration
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.