A water rocket is launched with an initial velocity of 128 ft/sec. Its height h, in feet, after t seconds is given by the formula h equals 128 t minus 16 t squared. When will the rocket be exactly 112 ft above the ground?

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

World class speed skaters can skate a 3,000-m course in about 4 minutes.what is their average speed for this course? a. 12.5 m/sb. 1.33 m/sc. 1.25 m/sd. 13.3 m/s

2. -/1 pointsserpse10 2.7.p.017.mi. an object moving with uniform acceleration has a velocity of 14.0 cm/s in the positive x direction when its x coordinate is 2.97 cm. if its x coordinate 2.85 s later is -5.00 cm, what is its acceleration? cm/s2 need ? read it master it