Asupply bag is dropped from a rescue plane. after the bag falls for 3.2 seconds, what is the velocity of the bag?
how far has the bag fallen?
i know the answer to the first one is -19.6 but im struggling to figure out the second

-31.4 m/s

50.2 m

Explanation:

Given:

x₀ = 0 m

v₀ = 0 m/s

t = 3.2 s

a = -9.8 m/s²

Find: v and x

v = at + v₀

v = (-9.8 m/s²) (3.2 s) + 0 m/s

v = -31.36 m/s

x = x₀ + v₀ t + ½ at²

x = 0 m + (0 m/s) (3.2 s) + ½ (-9.8 m/s²) (3.2 s)²

x = -50.176 m

Rounding, the bag reaches a velocity of -31.4 m/s after falling a distance of 50.2 m.

i need the answer to this too but idk it ; -;

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27