Calculate the displacement and velocity at 2.00 s for a ball thrown straight up with an initialvelocity of 15.0 m/s. take the point of release to be y0= 10.0 m. how long does it take to hit the ground? consider the origin of soc at the ground and oy is upward.

The displacement, velocity and time is 20.4 m, -4.52 m/s and 3.624 sec.

Explanation:

Given that,

Initial velocity =15.0 m/s

Height = 10 m

We need to calculate the displacement at 2 sec

Using equation of motion

Put the value into the formula

At 2 sec,

We need to calculate the time

Using equation of motion again

At ground s = 0,

Neglect the negative term because the time is not negative

We need to calculate the velocity

Using formula of velocity

Hence, The displacement, velocity and time is 20.4 m, -4.52 m/s and 3.624 sec.

1/0.14nm = 10^10/1.4 a lot

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