X constant constant 4-7 -2ray Snapshots of this motion at equal time intervals are shown in FIGURE 4-6. EXAMPLE 4-3 DROPPING A BALL A person skateboarding with a constant speed of 1.30 m/s releases a ball from a heightA Question 25 (1 point) Retake question Please refer to Example 4-5 in the textbook (page 97). What is the speed of the mountain climber at time t = 0.58 s, in meters per second? Keep in mind that the velocity along x does not change. The horizontal velocity is given in the solution to the problem. Calculate the velocity along the vertical direction (Eq. 4-7) and use the Pythagorean Theorem. As always, we use this theorem to find the magnitude of a vector if we know its components