What is the kinetic energy in joules of a 870-kg automobile traveling at 95 km/h?

The kinetic energy is 303178 Joule

Explanation:

We must change the speed units to m / s =

1km 1000meters

1h 3600 seconds

v = (95km 1000m / km) / (1h x 3600s / h) = 26, 4 m / s

We use the Kinetic Energy formula: Ec = 1/2 m x v ^ 2

Ec = 1/2 x 870 kg x (26, 4) ^ 2 = 303177, 6 Joule

the answer is a)

mark brainliest

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2