Please Hurry!!! 25 Points A van increased in speed from 20 km/hr to 30 km/hr in 5 seconds. A truck increased in
speed from 40 km/hr to 60 km/hr in 15 seconds. Calculate the acceleration of each. Include
units.

•• 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?

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25? , b) el tiempo que el balón permanece en el aire.

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z