The equation of motion for a parachutist moving along the OY axis has the form y = 1000-2t

The equation of motion for a parachutist moving along the OY axis has the form y = 1000-2t. What will the athlete’s speed and position be in 5 minutes after the start of observation?

h = 1000 – 2 * t. t = 5 min = 300 s. V (t) -? h (t) -? The dependence of the coordinate of the body on time with uniform motion has the form: h = h0 + V * t, where h0 is the initial coordinate of the body, V is the speed of the body, t is the time of motion. For our equation, the initial coordinate is h0 = 1000 m, the speed of movement is V = – 2 m / s. The “-” sign means that the body is moving down. h (t) = 1000 – 2 m / s * 300 s = 400 m.
Answer: body speed V = 2 m / s, coordinate h (t) = 400 m.