A force with a magnitude of 400 N is used to stop an object with a mass of 59 kg moving at a velocity of 125 m/s. How long will it take to bring the object to rest? PLEASE HELP ASAP

t = 18.43[s]

Explanation:

This problem can be divided into two parts, in the first part we will use Newton's second law, which tells us that the sum of forces on a body is equal to the product of mass by acceleration.

where:

F = force = 400 [N]

m = mass = 59[kg]

a = acceleration [m/s²]

Now replacing:

Now we must use the following equation of kinematics.

where:

Vf = final velocity = 0 (to bring the object to rest)

Vo = initial velocity = 125 [m/s]

a = acceleration = 6.78 [m/s²]

t = time [a]

Now replacing:

good looking response

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