A5-kg object experiences forces as shown in the diagram. which statement best describes the motion of the object?
a) the object would have a velocity of 6 m/s to the left.
b) the object would have a velocity of 6 m/s to the right.
c) the object would have an acceleration of 6 m/s/s to the left.
d) the object would have an acceleration of 6 m/s/s to the right.

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

pe = weightxheight = 2000x1000=2,000,000joules

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.

answeralert drivers who drift off the road;