a truck travels up a hill with a 12% incline. the truck has a constnt speed of 22m/s. what is the horizontal componet of the reucks velocity

Answer 1

Ok, wondering what 12 percent means, assuming it means tangent Theta= 12/100=.12

then if you draw a right triangle, with the horizontal side 100, the opposite side 12, then the hypotenuse must be sqrt (100^2+12^2)= sqrt(10144)=101.7

so the cosine of that angle is
= 100/101.7=.983

so the horizontal velocity=22*.983

Now the big question: did you mean 12% or did you mean 12 degrees.