Can someone help with the questions with the X on them? How do you find the answer, and for the theory questions, explain why?

A man riding in an elevator has an apparent weight greater than his actual weigh\" Which one 0' \"'9 following statements could be true? / A. The elevator moves upward with constant speed. B. The elevator moves downward with constant speed, s; Ihe elevator moves upward with decreasing speed. [5 The elevator moves downward with decreasing speed. 'E. The elevator moves downward with increasing speed. 28. A leprechaun pulls his 12 kg pot of gold along the ground with a horizontal force of as M. It the pot oi gold accelerates at 2.0 m/s', what is the force alirictlon between the ground and the put of gold? A. 38 N B. 24M 1&2 14M ,-,.' ,- \\ . 12M i,' \\ 2'?! An Amazon terry boat can move through still water at 2.0 Inn/ll. The boat makes a trip 3.0 km . downstream and then 3.0 km back to its starting point. The riverows at a constant speed of 1.0 kmlh. The time required for the entire trip is A. lhour l B. Zhours ftp-5"" \\ \"A: 3hours I 1\"\" ' Q. 4hours i 'l' E. 5 hours ' ' ' so, what force is needed to stop a 1500 kg Maserati sports car In 9.0 s it it was initially travelling at 5.0 m/s? \\'izqr' L'- A. 27me A. -7.5x103N \\ c. 7,5x103n t: 104 L l... .i \\i o. ~813x10'N a ' 4 r ' . Gt . 'iu ' ( V; 1 O iynen you stand on the oor, the force of your body pushing down on the floor is 'KA. matched by the oor pushing up on your body. B. less thanthe reaction lorce applied by the floor. C. a reaction to the oor pushing up. D. none of the above is: k section of a river ows with a velocity of 1 m/s due 5. A kayaker who is able to prepei her kayak at 1.5 I mIs wishes to paddle directly east one bank to the other, in what direction should she direct her kayak? a. 37'Noic \".6" i - 'i y. k: az'NoiE 1. AS'NofE D. 48'NofE 44. A crane lifts a 300 kg load at a constant speed to the top of a building 60 m high in 15 s. Rounded to the nearest thousand, the average power expended by the crane to overcome gravity is: A. 10.000 W \\3 , [7! u (1i isF 11.000 W C. 15,000 W D. 30,000 W 45. You need to move two identical couches from the first to the second floor of an apartment building. The rst couch is carried directly from the rst to the second floor. on your SECOHd trip. you decide toputa ramp over the staircase and you both push the couch W the "1um "'9 second "WK During Wh'Ch ml! did you perform the most work on the couch? it. The rst trip 3. 'ihe second trip C. The same work for each trip Do No work Is done In either trip ' 6 id olwork is done by a force in moving an object 120 m In 1 minute. The force appugd is: fe" W' (1)005, a.zoM i T ' c.7zou June,\" 5901' 'i'.i\\ 0. an '404 For the object In the previous question. the power developed is: A, 50 W O 100 w C. 120 W D. GDOOW 7' \\ 4%. Which of the following describes something simple machines CANNOT do? I, A. 'increasethe force you put in \\s. increasethe work you put In C decrease the force you put In D, decrease the work you put in