Question

1. A drill initially rotates at a rate of 30.0 rad / s. The drill accelerates at a rate of 0.50 rad / s ^ 2.

Determine its angular speed after 10.0 seconds.

2. A drill initially rotates at a rate of 30.0 rad / s. The drill accelerates at a rate of 0.50 rad / s ^ 2.

Determine your angular position in revolutions after 15.0 seconds.

Remember that 1 revolution = 2π rad.

3.Which has a greater mass, a pound of lead, or a pound of water?

Select one:

to. Kg of lead

b. The kg of water.

c. They have the same mass.

4.Which occupies a greater volume? One kilogram of lead or one kilogram of water at room temperature.

Select one:

to. Kg of lead

b. The kg of water.

c. They occupy the same volume.

Answer 1

Answer

1o. co.- 30 read/ x = 0.5 read/8² t = 108 W = Watat = 30+ 0.5810 - 25 read/32 2. wo= 30 read/ x = 0.5 read/s2, t = 153 0-2 o wot + tort 2 - 30*15 + 5x0.5*(15) = 506. 25 read = 506,as pevolection ग = 80.572 revolution 3. 1 pound They have eare mans Mass conetont fra m - f (density) I ready Sweder Miead mwater 7 Vread water Vetorey lead Ango, the kg of water