23. Two ice skaters stand next to each other on a frozen pond. The first skater has a mass of 65 kg and the second skater has a mass of 82 kg.
If the first skater pushes against the second with a force of 35 N, south, what are their respective
accelerations?
A. First skater: 0.27 m/s?, north; Second skater: 0.21 m/s2, south
B. First skater: 0.27 m/s?, south; Second skater: 0.21 m/s?, north
C. First skater: 0.54 m/s?, north; Second skater: 0.43 m/s?, south
D. First skater: 0.54 m/s?, south; Second skater: 0.43 m/s?, north
24. A girl is sitting motionless on a swing. Her weight of 245 N is exerting a downward force on the swing.
The ropes are exerting an upward force on the swing.
What is the net force on the swing?
I
A. O Newtons
B. 245 Newtons upwards
C. 245 Newtons downwards
D. 490 Newtons upwards
no