A boy dives into a lake at an angle of 30 degrees to the horizontal and continues in a straight line for 7 meters. a) How deep did he dive? b) How far has he traveled horizontally?
Using component form of a vector
See that 7 m represents a vector whose angle with horizontal is 30 deg
Now Horizontal component of this vector will give horizontal distance traveled by boy
S = 7 m at 30 deg below horizontal line
Sx = 7*cos 30 deg = 6.06 m = distance traveled horizontally (Answer of part B)
Now Vertical component of this vector will give depth of boy
Sy = 7*sin 30 deg = 3.5 m = distance traveled Vertically = depth of boy (Ans of part A)
Please Upvote.
See that 1st answer is of part B and 2nd answer is of part A
A boy dives into a lake at an angle of 30 degrees to the horizontal and...
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