1) If i observe a flower pot falling past my window, height 1.5m ina time .2 sec

Question

1) If i observe a flower pot falling past my window, height 1.5m ina time .2 sec, it must have been dropped from a height of about____m above the top of my window.


2) If you throw a rock straight up at 10 m/sec, the rock will be inthe air for about____ seconds?

3) If upward velocity is kept at 10 m/sec but the rock isadditionally given a horizontal velocity of 5 m/sec, the rockwill travel a horizontal distance of about ____m?

4)The angle between the vectors (1,3,1) and (-1,2,3) is about ____degrees?

5) The magnitude of the above vectors cross product is about?

6)If a car is going around a highway curve radius 100m, at aconstant speed of 30 m/sec, its acceleration is about _____m/sec^2

7)If a 3 Kgm mass is accelerating at 3 m/sec^2 a force ofmagnitude about ____ N is required? (this question doesntmake sense)

8)If a 500 Kgm car collidies with a 100,000 Kgm truck, the ratio oftruck acceleration to the acceleration of the car is about_____?

9)IF a mass sliding down a frictionless ramp making an angle of 30degrees with the horizontal, its acceleration is about______?

Explanation / Answer

ok i just need number 8 and 3 and if anyone can tell me if 7 is 9N

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