Two 50-N weights pull on the scale as shown. The reading on the scale is
1) 0 N.
2) 25 N.
3) 50 N.
4) 100 N.
This is clearer to understand if we think of the situation this way:
5) Since no acceleration is taking place, the forces cancel one another.
6) One of the weights holds the scale while the other weight stretches the spring.
7) The two hanging weights provide forces that constitute an action/reaction pair.
Question 2
The two men compete in a tug of war. Both pull equally and the scale reads 800 newtons. Each man must pull with a force of
1) 400 N.
2) 800 N.
3) 0 N.
Consider action and reaction forces in this case: If action is the man on the left pulling on the rope, then the reaction force is
4) the rope pulling on the man on the left.
5) the rope pulling on the man on the right.
6) the man on the right pulling on the rope.
Ground cover and colour such as shown here in (a) white sand
Glasgow Coma Scale
A the subfossil lemurs of Madagascar filled a variety of niches occupied elsewhere by monkeys, as sh
Hearing and Reading Words
Three days after the Boston Marathon explosion, the FBI released this photograph that had been taken
Production-scale tangential flow filtration system.