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thaokieu
Questions (13)
A 2940 kg demolition ball swings at the end of a 16.9 m cable on the arc of a vertical circle. At the lowest point of the swing,
0 answers
844 views
An object is moving along a straight line. The graph shows the object's velocity as a function of time.
. What is the
0 answers
1,372 views
Vector has a magnitude of 4.10 units and points due east. Vector points due north. (a) What is the magnitude of , if the vector
1 answer
482 views
A force vector points at an angle of 54.9 ° above the +x axis. It has a y component of +108 newtons (N). Find (a) the magnitude
1 answer
572 views
A pilot flies her route in two straight-line segments. The displacement vector A for the first segment has a magnitude of 242 km
0 answers
726 views
A baby elephant is stuck in a mud hole. To help pull it out, game keepers use a rope to apply a force FA, as part a of the
0 answers
609 views
The components of vector A are Ax and Ay (both positive), and the angle that it makes with respect to the positive x axis is θ.
4 answers
7,909 views
A force vector has a magnitude of 576 newtons and points at an angle 43o of below the positive x axis. What are (a) the x scalar
1 answer
1,164 views
Before starting this problem, review Conceptual Example 7. The force vector A has a magnitude of 79.0 newtons (N) and points due
2 answers
1,621 views
Which one of the following situations is not possible?
A body travels with a constant acceleration and a time-varying velocity. A
3 answers
3,270 views
During the first 18 minutes of a 1.0-hour trip, a car has an average speed of 11 m/s. What must the average speed of the car be
3 answers
10,250 views
The initial velocity and acceleration of four moving objects at a given instant in time are given in the following table.
2 answers
5,042 views
High-performance race cars can accelerate from 0 m/s to 27 m/s (60 mi/h) in about 4 s. To see how large the acceleration due to
2 answers
3,413 views
