an experiment is designed to compare the differences in learning outcomes between learning math from s video game and learning i

1 hour = 3,600 seconds
1 km = 1,000 meters

75 km/hour = (75,000/3,600) m/s = 20-5/6 m/s

The mean speed during the deceleration is

                                   (1/2)(20-5/6 + 0) = 10-5/12 m/s.

Traveling at this average speed for 21 seconds,
the bus covers

                        (10-5/12) × (21) = 218.75 meters.

Answer:

The kinetic energy is higher for the first cart.

Explanation:

For the second cart, its mass is 2kg and the momentum measured is 10kg m/s, which leads to

resulting in

.

Consequently, the kinetic energy for the 3kg cart ends up as

indicating it is less than that of the 1kg cart so it follows that the first cart possesses greater kinetic energy.