Answer is in the attachment below. If you have any questions about the workings, just leave a comment below.
(1 / 5) hour is 12 minutes and five times this equals 1 hour.
So the distance times 5 equals miles per hour.
(3 / 4) * 5 = 15 / 4 = 3.75 mph

The distance traveled by the particle is given by the definite integral

where

is the path of the particle. The distance is then
Answer:
relationship between base and hypotenuse is given by cos angle
let angle be ø
cos ø=b/h
cosø=28/34
ø=cos-¹(28/34)=34.5°