Answer:
A. The bus has more kinetic energy than the car.
Explanation:
We know that
Kinetic energy is the energy amount possessed from the body as in the motion
Also, the following formula should be used to determine the kinetic energy
Kinetic energy = 1 ÷ 2mv²
Here m represents the mass of the body
and v represents the velocity of the body.
Therefore it should be based on the mass & velocity of the body
In the case when the passenger bus have more kinetic energy as compared to the car so this is because of the the big mass
Therefore, the first option is correct
Answer:
a
Explanation:
you will find out that an object that has more weight requires more energy to move than the one with less weight
When balanced forces act on an object at rest, the object will not move. If you push against a wall, the wall pushes back with an equal but opposite force. Neither you nor the wall will move. Forces that cause a change in the motion of an object are unbalanced forces.
Explanation:
we use the formula for that 6s duration ....
<h2> S = ut + 1/2 at² </h2><h3>s = displacement </h3><h3>u = initial velocity </h3><h3>a = acceleration </h3><h3>t = time </h3>
so , S = (5 × 6) + (1/2 × 2 × 6 × 6 )
S = 30 + 36
<h3> S = 66m</h3>
and we can use this formula to find the final velocity.......
<h2> V = U + at </h2><h3>V = final velocity </h3><h3>a = acceleration </h3><h3>u = initial velocity </h3><h3>t = time </h3>
so , V = 5 + (2×6)
V = 5 + 12
<h3> V = 17m/s </h3>
Answer:
B. Less force is needed to stop a person that has less mass.
Explanation:
