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- Do it fastA crate (100 kg) is in an elevator traveling downwards and slowing down at 6 m/s. Find the normal force exerted on the %3D crate by the elevator. Assume g = 10 m/s2. A. 1600 N B. 400 N C. 1000 N D. 400 N E. 600 N1.) A projectile is fired from the top of a cliff 100m high with a velocity of 450 m/s directed at 45 degrees to the horizontal. Based from this problem, wow high the projectile will rise? a. none b. 5,604.442m c. 4,840.246m d. 6,004.008m e. 5,160.550m 2.) Three forces, F1=2Ni+3Nj, F2=-10Nj and F3=3Ni+1Nj-5Nk, act on a particle. Find the net force on the particle. a. 5Ni−6Nj−5Nk b. 5Ni+6Nj+5Nk c. 5Ni+6Nj−5Nk d. 5Ni−6Nj+5Nk
- You find yourself stranded on the middle of a frozen pond. The surface is so slick you are unable to get any traction. In an effort to save yourself, you take off your boot and throw it toward the west. This results in... A. you staying put. B. you sliding off to the east slower than the boot's speed. C. you sliding off to the east faster than the boot's speed. D. you sliding off to the west faster than the boot's speed. E. you sliding off to the west slower than the boot's speed.B7q7 help please
- HW5 Q9W Mot X DThe X G dece X x C G dece x S S Stud X E Grac X Grac XE Grac X G mot X G net X G g to X Revi X a classroom.google.com/u/0/c/M]Y4MTUXMDQ3MZQZ/a/MzExODMzNzQwOTQw/details c) What is the average velocity of each car for the first 10s? 4. A car is travelling at 10 m.s when the driver sees a police car. The driver brakes and decelerates at 4 m.s for 2 seconds. After 2 seconds of braking, the driver is confident that the police have not seen him so speeds up again to his original speed in 4 seconds and then maintains his original speed. 10 6. 8. 7. 5. 41 2. 1. 0 1 2 3 4 5 Time (s) a) What is the acceleration when the driver is speeding up again? 9. 7 8 9 10 b) What is lowest instantaneous velocity of the car and at what time does it occur? c) What is the displacement of the car travel under braking? Type here to search 6, 3. Velocity (m/s)8. You are riding a roller-coaster going around a vertical loop, on the inside of the loop. If the loop has a radius of 55.0 m, how fast must the cart be moving in order for you to feel 2.75 times as heavy at the bottom of the loop? X 44.96 m/s E 30 J R V 96 T FO G B MacBook Air 20 Y H & 7 N w 8 CHI M ( 9 K MOSISO FO O P command option