Desde el suelo un balón es pateado con un ángulo de elevación de 45° y cae a 14,7m del punto de donde fue pateado. ¿Con qué velocidad fue pateado el balón?

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter