Please explain the solution along with the answer.

17). A smart car goes off a jump in the smart car smash-up derby. The car has an initial velocity of SDm/s and the )ump is angled at 28 degrees With the horizontal a) Find the components 126.5m/s and 14.1m/s) b). Find the velocity after 2.55 (28.5m/s) 18). A car is driven horizontally off a 65m high cliff at 72km/h. a). Find the speed of the car through the air 2.0 seconds after it goes airborne (28m/s) _F b). The time when the magnitude of the velocity is ZSm/s (1.535s) 19). A person walks 36m, 35 degrees W of S (west of south). What is the southward component ofthe displacement (29.5m) 20). A boat in still water of 4m/s heads due south in a current of Elm/s to the east. a). Find the resultant speed of the boat (5.0m/s) b). The direction of the resultant velocity (37 degree E of S) 21). A plane with an air speed of 450 km/h heads due south in a wind which blows directly to the west. Its resultant direction of travel is 27 degrees W of 5. Find the Speed of the wind (ZZSKm/h) 22) A 7.6kg object is resting on a horizontal surface. What is the normal force acting on the object? (75N up) What is the static force of friction if the coefficient of friction is us=0.20. (15N) A. An 5kg object is pushed against the wall with an applied force of 10N, the coefficient of static and kinetic friction are us = 0.3 and uk=0.2. Prove mathematically (show me all the calculations) ifthe block will slide and the net acceleration of the block. (a = -9.4m/s"2) 24). A rope is used to pull up a 65' flat screen TV from the balcony of the apartment. if the TV weighs 333N and is moving up by 0.25m/5A2. What is the Tension force required to move the fiat screen TV? (341.50N) 25). A rope is tied to the center of the 20kg block and is pulled with a tension force of lOON at an angle of 50 degrees on a frictionless surface. Find the net acceleration. (Slim/92) [6). The same question as 25. But this time there is friction us : 0.8 and uk :0.5. a). Find the normal force. (119.4N) b). Determine if the tension force will over come the static frictional force. (NO) c). Would increasing my tension force by 2 over come the static force and if so calculate the net acceleration. (5.85m/sA2) 26). A Nissan Cube is driven off a 54 m cliff and lands 27 m from the base. a) Find initial velocity (8.13m/s) b) Find the velocity 1.2 seconds after the car leaves the cliff (14.3m/s, 55 degeree) 27). A rock is thrown horizontally from a platform 17 m high.. What is the minimum initial velocity needed if the rock must clear a 12 rn high fence 17 m from the platform? (17m/s) 28). A cannon ball is launched on a flat field at an angle of 30 degrees with horizontal and has an initial velocity of 100 m/s. Find: a) The horizontal component of the initial velocity. b) The vertical component of the initial velocity. c) The vertical component ofthe velocity 5 seconds after launch. d) The vertical component of the velomty 8 seconds after launch. e) The maximum height reached by the cannon ball f) The velocity ofthe cannon ball at its maximum height. 3) The time olflight h) The horizontal range i) The velocity at impact j) The velocity 4.0 seconds after launch k) The velocity 7.0 seconds after launch. 28). A 2 blocks system is being pushed by an applied force of 49N from the left of block 1 lblue), block 2 (black) is Side by side block 1. If block 1 and block 2 has a mass of 4kg and 3kg. What is the force between the two blocks. (21N) 7nnn7