Can anyone help with these? Just to confirm I need help with: 1(c), 3a), 4, 5, 7 (a) and (b), all of 9 and 10, and lastly 11 and 22. Thank you!

4) (6p) Using the graphical method of vector addition, find the net force for the three force vectors given in the free-body diagram below. Indicate the direction of the net force. (Note: The component method may be used to check vour result, but will not earn you points.) 5) The photo shows a physics demonstration in which a ball is launched vertically up from a moving cart. (3p) Include in the figure a vector for each of the points P and Q showing the direction and relative magnitude of the acceleration of the ball. Label each vector a . than an o bo of s have fon zo 3(6 Your teenage neighbor Adrian is bored and he throws a tennis ball against the house wall with an initial speed of 14 m/s at an angle of 40 above the horizontal. The tennis ball hits the wall 0.8 s after launch. a) (6p) How far from the wall, in the horizontal direction, does Adrian launch the tennis ball? b) (8p) When the ball hits the wall, is it moving upward O moving downward O at its highest point in the path? Show the calculation that allows you to determine that. 10) A skier speeds up down a trail, as shown in the figure. The surface is inclined at an angle of = 23' with the horizontal and the kinetic friction needs to be considered. a) (6p) Draw a free-body diagram for the skier and label all forces that act on the skier with their symbols or names. Use a coordinate x-axis parallel to the slope. How to do this? b) (4p) Rank the magnitude of the normal force and the 700 N weight of the skier. sion OFN is greater than 700 N. O FN is equal to 700 N How do you X O Fy is less than 700 N. find this out ?. 511) (10p)The gure shows a bow and arrow with the bowstring pulled back and the arrow ready to be released. At this instant. the bowstring is at rest. The archer is pulling back at the midpoint of the bowstring with a force of 150 N. Drawn is the free-body diagram for the bowstring (including the three forces that need to be considered). The weight of the string can be neglected because it is small compared to the other forces acting on the bowstring. Due to symmetry, the two tension forces shown have the same magnitude. Calculate the tension force Fr in the bowstring. 12)(10p) A 12.0 N horizontal force pushes a mock of weight 5.0 N against a vertical wall. The coefcient of static friction between the wall and the block is 0.60. and the coefcient of kinetic friction between the wall and the block is 0.40. Assume that the ock is initially not moving. Determine the friction force on the block and decide whether the block stays at rest or begins slipping. What type of friction is it? There is @tatic f O kinetic friction force of magnitude acting on the block. 6 1) The figure shows a velocity versus time graph for an object that was located 24 m west of the origin at time Os. Assume the positive direction is "east". Velocity Velocity (m/s) 8 10 12 14 16 18 20 24 26 Time (s) c) (7p) At time 4s, where is the object located? (Recall the object started at 24 m west of the origin.) Give your answer as meters M east or O west of the origin or O at the origin3a) (5p) A fast racehorse can reach a top speed of 37 miles per hour. Convert this speed into meters per second. 1 mi = 1.609 km \\ Q ~ -7 \\ \\\\\\x\\g\\\\\\\"\\\\ \\V\\\\\\':\\ ' V ' 3 7) A ball is launched with horizontally with an initial velocity of 15 m/s from the platform of a tower that is 19.5 m tall (above y ground level). ' a) (7p) After how many seconds does it hit the ground?- b) (7p) What is the speed of the ball at the instant right before it lands on the ground