CALCULATIONS 6. Acceleration figures for cars usually are given as the number of seconds needed to go from 0.0 to 97 km/h. a. What is the average acceleration of Car A? Car B? Car C? b. Which car can go from 0.0 to 97 km/h in the shortest time? Does this car have the highest acceleration or the lowest? c. For acceleration from 0.0 to 97 km/h, which direction is the acceleration vector pointing? Explain your answer. d. When a car is braking from 97 km/h to 0.0 km/h, is it positive or negative acceleration? Explain your answer. e. Based on the information shown in the figure, which car would you consider to be the safest? Why?

Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor

16. a brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 n on him. the mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20m/s2 size 12{1 "." "20"" m/s" rsup { size 8{2} } } {} backward. (a) what is the force of friction between the losing player’s feet and the grass? (b) what force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) draw a sketch of the situation showing the system of interest used to solve each part. for this situation, draw a free-body diagram and write the net force equation.

What was the purpose of the apollo program? to put a man in orbit to launch a spy satellite to launch a space station to put man on the moon