Lana needs to hide her diary from her her little brother. she found a great spot on top of the refrigerator. she wanted to know at what angle does she need to throw her diary, so it can reach the top of the refrigerator.
the fridge is 10 feet above her hand and the distance between her and the fridge is 5 feet. she decided to use what she learned in school to find the angle. she used the equation (arc tan) tan A= (arc tan)10\5. from that equation she figured out that the angle is 63 degrees.
Lana now knows at what angel she needs to throw her diary, but she doesn't know how far. she used the equation sin (63) = 10/x and found that x=11.2 feet. Lana then throws her diary and it lands on top of the refrigerator.
Now i am sure that my brother won't find it.
Is that Lana's diary?I will steal it and put it back, so she would not know.
Lana's little brother uses the equation cos (16) = x/5 to find the distance he needs to be to use the stick to push the diary till it falls on the floor. he found out that x= 4.8.