Asoccer ball with mass 0.420 kg is initially moving with speed 2.00 m/s. a soccer player kicks the ball, exerting a constant force of magnitude 40.0 n in the same direction as the ball’s motion. over what distance must the player’s foot be in contact with the ball to increase the ball’s speed to 6.00 m/s?

What is the length x of the side of the triangle below? (hint: use the cosine function)

•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection