Question

question 8 (1 point)
(02.06 mc)
emily is riding her skateboard down the sidewalk at 2 m/s when she suddenly hits a rock, causing the skateboard to stop. according to newtons first law of motion, what happens to emily?
a emily accelerates forward.
b emily moves forward at 2 m/s.
c emily moves forward at less than 2 m/s.
d emily stops with her skateboard.

Explanation:

Newton's first law (law of inertia) states that an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Emily was moving at 2 m/s on the skate - board. When the skate - board stops due to the rock, there is no force immediately acting on Emily to stop her. So she continues moving forward at 2 m/s.

Answer:

B. Emily moves forward at 2 m/s