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December 21, 2014

December 21, 2014

Posted by **Sandhya** on Sunday, March 30, 2008 at 3:48am.

3.0 meters from a point on the floor directly below the edge of the table. The initial velocity of the ball as it is projected from the table is, in m/s ( g=9.8 m/s2)

2. At an airport, luggage is loaded into two cars of a luggage carrier being pulled by a luggage motocart whose mass

is 1100 kg. The car connected to the motorcart has a mass of 300 kg and the last car has a mass of 400 kg. If the

luggage carrier is accelerating at 1.3 m/s2 , the the tension in the coupling bar that connects the first car to the

motorcart is, in Newtons,

3. A traffic light weighing 140 N hangs from a vertical cable which is fastened to two other upper cables which are

attached to a horizontal support. One of the upper cables makes an angle of 30 degrees with the horizontal support

and the other upper cable makes an angle of 55 degrees with the horizontal support. The tension in the upper cable

that makes an angle of 55 degrees with the horizontal support is, in Newtons

4. A soccer player kicks a soccer ball from a point 20.0 m from the goal line. The soccer ball leaves the ground

with a speed of 20.0 m/s at an angle of 35 degrees to the horizontal. The height of the soccer ball as it passes over

the goal line is, in meters (Assume g = 9.8 m/s2)

- Physics (#1 of 4) -
**drwls**, Sunday, March 30, 2008 at 6:40am1. One question per post, please, and show your work. In the case of these four, you did not even provide the ___ where the answer is supposed to go.

In the case of #1, use the height to compute the fall time T. Then use

Vo * T = 3.0 meters,

where Vo is the initial velocity (which is horizontal) and 3.0 m is the horizontal distance travelled.

- Physics (#1 of 4) -
**Sandhya**, Sunday, March 30, 2008 at 7:23amThanks for the timely help

- Physics (#1 of 4) -

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