- #1
SkiingAlta
- 19
- 0
Hey everyone. Struggling a little bit with a force test I have tomorrow. I've tried a few problems, and don't even know where to begin on another. I have the answers, and I would like to see if they are correct. Thank you so much!
1. An object of mass 70 kg is accelerated by a net force of 20 N. What is its acceleration?
My answer is .286 N
2. A speedboat has a mass of 5.0 x 103 kg. It starts from rest and travels 2.0 x 102 m in 6.0 seconds. The boat undergoes uniform acceleration during the 6.0 seconds. What is the net force on the boat?
My answer is 55,550 N
3. A 75 kg girl traveling at a constant velocity on ice skates suddenly experiences an acceleration of -4 m/s2. What is the sum of the forces acting on her?
My answer is (HAH!). I don't even know where to begin. Any tips?
1. An object of mass 70 kg is accelerated by a net force of 20 N. What is its acceleration?
My answer is .286 N
2. A speedboat has a mass of 5.0 x 103 kg. It starts from rest and travels 2.0 x 102 m in 6.0 seconds. The boat undergoes uniform acceleration during the 6.0 seconds. What is the net force on the boat?
My answer is 55,550 N
3. A 75 kg girl traveling at a constant velocity on ice skates suddenly experiences an acceleration of -4 m/s2. What is the sum of the forces acting on her?
My answer is (HAH!). I don't even know where to begin. Any tips?