- #1
tyler24_11
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A grocery cart is being pushed with a force of 450 N at an angle of 30.0 degrees to the horizontal. If the mass of the groceries is 42 Kg,
(a) Calaculate the force of friction if the coefficient is 0.60.
Alright guys I have been doing this problem for around two hours. My physics teacher isn't a good teacher and I have no idea how to get the right answer(located in the back of book).Ive tried all I can think of,
Ff= (0.60)(450n)
= 270n
450 COS 30
= 389.7 N
and a bunch of othe stuff I erased off my paper
The answer in the back is 3.8 x 102 or around 380 n
(a) Calaculate the force of friction if the coefficient is 0.60.
Alright guys I have been doing this problem for around two hours. My physics teacher isn't a good teacher and I have no idea how to get the right answer(located in the back of book).Ive tried all I can think of,
Ff= (0.60)(450n)
= 270n
450 COS 30
= 389.7 N
and a bunch of othe stuff I erased off my paper
The answer in the back is 3.8 x 102 or around 380 n