A skydriver of mass 80 kgs jumps out of a plane. (a) ignoring air resistance, draw a free body diagram with all forces acting on the sky driver.

(b) Now, suppose that the air resistance increases as the speed of the skydiver increases, draw
the forces acting on the skydiver 3 seconds later, assuming that the skydiver's acceleration is
1 m/sdownwards at this instance. (2 marks)

The chemical effect of the endocrine system is longer lasting than the chemical effect of the nervous system. select the best answer from the choices provided t f

The process of predicting values that extend beyond the range of data points is called absolute value extrapolation interpolation prediction for any given: )

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s