Question

pregunta 1 (3 puntos)
(02.02 lc)
a tennis player uses ______ in the arm to cause acceleration of the tennis ball.
a balance
b deceleration
c friction
d velocity

pregunta 2 (3 puntos)
(02.02 mc)
joshua is warming up for his baseball game. he includes practice swings, throwing the ball, and lunges in his warm - up. which of the following does he need to add for a complete warm - up?
a a deep breathing exercise
b an aerobic exercise
c a muscle - stretching exercise
d a sport - specific exercise

pregunta 3 (3 puntos)
(02.02 mc)
which of the following shows the best example of a cool - down activity?
a jumping rope
b walking
c climbing stairs
d lifting weights

Explanation:

For Pregunta 1, velocity in the arm creates acceleration of the tennis - ball. For Pregunta 2, a muscle - stretching exercise is important for a complete warm - up to increase flexibility and reduce injury risk. For Pregunta 3, walking is a gentle activity that helps in cooling down by gradually reducing heart rate and blood pressure.

Answer:

Pregunta 1: d. velocity
Pregunta 2: c. A muscle - stretching exercise
Pregunta 3: b. Walking