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10-16-2007, 10:12 PM
Problem 1
A force F applied to an object of mass m1 produces an acceleration of 2 m/s2.
The same force applied to a second object of mass m2 produces an acceleration
of 1 m/s2.
(a) What is the value of the ratio m1/m2?
(b) If m1 and m2 are combined, find their acceleration under the action of the
force F
Problem 2A 2 .00-kg object undergoes an acceleration given by a = 2.00ˆ i + 5.00ˆ ( j )m/ s2
Find the resultant force acting on it and the magnitude of the resultant force
Problem 3
Three forces, given by
F1 = −2.00ˆ i + 2.00ˆ ( j )N,
F2 = 5.00ˆ i − 3.00ˆ ( j )N, and
F3 = −45.0ˆ ( i )N,
act on an object to give it an acceleration of magnitude 3 m/s2.
(a) What is the direction of the acceleration?
(b) What is the mass of the object?
(c) If the object is initially at rest, what is its speed after 10 s?
(d) What are the velocity components of the object after 10 s]
Problem 4
Two forces F1 and F2 act on a 5 kg object. If F1 = 6 N and F2 = 3 N, find the
magnitude and the direction of the accelerations in (a) and (b) of the figure
belowe?
A force F applied to an object of mass m1 produces an acceleration of 2 m/s2.
The same force applied to a second object of mass m2 produces an acceleration
of 1 m/s2.
(a) What is the value of the ratio m1/m2?
(b) If m1 and m2 are combined, find their acceleration under the action of the
force F
Problem 2A 2 .00-kg object undergoes an acceleration given by a = 2.00ˆ i + 5.00ˆ ( j )m/ s2
Find the resultant force acting on it and the magnitude of the resultant force
Problem 3
Three forces, given by
F1 = −2.00ˆ i + 2.00ˆ ( j )N,
F2 = 5.00ˆ i − 3.00ˆ ( j )N, and
F3 = −45.0ˆ ( i )N,
act on an object to give it an acceleration of magnitude 3 m/s2.
(a) What is the direction of the acceleration?
(b) What is the mass of the object?
(c) If the object is initially at rest, what is its speed after 10 s?
(d) What are the velocity components of the object after 10 s]
Problem 4
Two forces F1 and F2 act on a 5 kg object. If F1 = 6 N and F2 = 3 N, find the
magnitude and the direction of the accelerations in (a) and (b) of the figure
belowe?