Question

A horse has a kinetic energy of 29/400 J. If the horse has a mass of 300 kg.

what is the horse's speed?
OA. 98 m/s
OB. 33.1 m/s
O C. 14 m/s
OD. 9.9 m/s

Answer 1

OB. 33.1 m/s

To calculate the horse's speed, you can use the formula for kinetic energy:

KE = (1/2)mv^2

where m is the mass of the horse and v is its velocity. Rearranging the formula to solve for velocity:

v = √(2KE/m)

Plugging in the given values:

v = √(2 * 29/400 J / 300 kg) = √(58/300 kg m^2/s^2) = √(0.194 m^2/s^2) = 33.1 m/s