 Force and Acceleration Printer Friendly Version
Use the following information to answer the next six questions.

Shelly the skater, total mass 25 kg, is propelled by rocket power. Complete Table I. (neglect any resistance)

 Force(N) acceleration(m/sec2)
 100
 200
 250

Complete Table II for a constant 50-N resistance.

 Force(N) acceleration(m/sec2)
 50
 100
 200

Refer to the following information for the next five questions.

Block A on a horizontal friction-free table is accelerated by a force from a string attached to Block B. B falls vertically and drags A horizontally. Both blocks have the same mass m. (Neglect the string's mass.) The mass of the system [A+ B] is
The force that accelerates [A + B] is the weight of
The weight of B is
Acceleration of [A + B] is
 Calculate the exact acceleration of [A + B] in m/sec2 Refer to the following information for the next three questions.

Suppose A is still a 1-kg block, but B is a low-mass feather (or a coin). Compared to the acceleration of the previous system, the acceleration of [ A + B ] here is
and is
In this case the acceleration of B is
Refer to the following information for the next two questions.

Suppose A is a feather, or coin, and B has a mass of 1 kg. The acceleration of [A + B] here is
In this case the acceleration of B is
Summarizing the three cases we have examined, where the weight of one object causes the acceleration of two objects, we see the range of possible accelerations is

Refer to the following information for the next three questions.

A ball rolls down a uniform-slope ramp. Acceleration is
If the ramp were steeper, acceleration would be
When the ball reaches the bottom and rolls along the smooth level surface it Related Documents