David puts a rock in his sling and starts whirling it around. He
realizes that in order for the rock
to reach Goliath, it must leave
the sling at a speed of 60 feet
per second. So he swings the
sling in a circular path of radius
4 feet. What must the angular
velocity be in order for David to
achieve his objective?

Use stoichiometry to complete
all your work on the next slide.

we know that

applying the law of sines

°

so

∠j=18°

∠k=29°

∠l=180-(18+29)=133°

the answer part a) is

the measure of angle k is  ≈29°

part b)  the measure of angle k could also be

(180-29)=151°

so

∠j=18°

∠k=151°

∠l=180-(18+151)=11°

the answer part b) is

the measure of angle k could also be 151°

read more on -

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²

not sure but it may be b, as i said i'm not sure.