When the distance covered by a body moving in a circular path after 1 / 8 revolution is 22 m then its displacement during 1 / 4 revolution equals a. 28m
b. 44m
c. 14 Square root 2 m
d. 28 Square root 2 m

can someone please help me with the steps

Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this