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godkills
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Your friend's 12.4 g graduation tassel hangs on a string from his rearview mirror. (a) When he accelerates from a stoplight, the tassel deflects backward toward the rear of the car. Explain. (b) If the tassel hangs at an angle of 6.44 degrees relative to the vertical, what is the acceleration of the card?
I am trying to understand the mechanics of forces yet some reason I don't understand it maybe it is the wording or my english trying to understand "deflects backward". Also I don't know how to figure out part b
The book says
When the car accelerates from the stoplight, the string must exert a forward force on the tassel in order to accelerate it in the horizontal direction at the same rate as the car's acceleration. The string must also continue to exert an upward force on the tassel to balance the force of gravity. As a result the tassel hangs at an angle, deflected toward the back of the car.
Somehow that isn't really getting to my head.
also part b answer is 1.11 m/s^2 i figured out the normal force and weight but i figured since the tassle isn't on the ground there is only normal force meaning the tension and no weight? Or there is always weight even if it is above ground?
I am trying to understand the mechanics of forces yet some reason I don't understand it maybe it is the wording or my english trying to understand "deflects backward". Also I don't know how to figure out part b
The book says
When the car accelerates from the stoplight, the string must exert a forward force on the tassel in order to accelerate it in the horizontal direction at the same rate as the car's acceleration. The string must also continue to exert an upward force on the tassel to balance the force of gravity. As a result the tassel hangs at an angle, deflected toward the back of the car.
Somehow that isn't really getting to my head.
also part b answer is 1.11 m/s^2 i figured out the normal force and weight but i figured since the tassle isn't on the ground there is only normal force meaning the tension and no weight? Or there is always weight even if it is above ground?