You're having trouble loosening a rusty nut with a small wrench, so you borrow a large wrench from your neighbor. Exerting only a modest force on the handle of this new wrench easily unscrews the nut. The large wrench helps because
A. it allows you to exert your force far from the center of rotation, so that you produce a large torque on the nut.
B. it has a large moment of inertia so that it develops a great deal of angular momentum when you exert a force on it.
C. it has a large mass so that its inertia allows you to overcome the nut's velocity and accelerate it around in a circle.
D. it has a large acceleration and a large mass, so the force it produces is large, according to the equation F=ma.
Answer:A
You're having trouble loosening a rusty nut with a small wrench, so you borrow a large wrench from your neighbor. Exerting only a modest force on the handle of this new wrench easily unscrews the nut. The large wrench helps because
A. it allows you to exert your force far from the center of rotation, so that you produce a large torque on the nut. B. it has a large moment of inertia so that it develops a great deal of angular momentum when you exert a force on it. C. it has a large mass so that its inertia allows you to overcome the nut's velocity and accelerate it around in a circle. D. it has a large acceleration and a large mass, so the force it produces is large, according to the equation F=ma.