The side of a tent makes an angle of 65° to the ground. if a boy who is 1.1 m tall stands inside the tent with his head touching the tent's peak, how long is the fabric that makes up the side of the tent? a. 0.6 m b. 0.9 m c. 1.1 m d. 1.2 m

D. 1.2 m

Explanation:

According to the description, the boy, the side of the tent and the ground form a right triangle, which means we can solve this problem with a trigonometric function.

If in this right triangle the boy (whose length is ) and the ground are the sides of the triangle and the fabric that makes a angle with ground is the hypotenuse, we can use the function sine:

Isolating the :

Finally:

This is the length of the fabric

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

what is the actual question though?