A 1.5 kg ball at the end of a 1.1 m string swings in a vertical plane. At its lowest point the ball is moving with a speed of 15 m/s. (a) What is its speed (in m/s) at the top of its path? |m/s (b) What is the tension (in N) in the string when the ball is at the bottom and at the top of its path? bottom of its path N top of its path

A frictionless plane is 10.0 m long and inclined at 42.0°. A sled starts at the bottom with an initial speed of 5.70 m/s up the incline. When the sled reaches the point at which it momentarily stops, a second sled is released from the top of the incline with an initial speed v. Both sleds reach the bottom of the incline at the same moment. (a) Determine the distance that the first sled traveled up the incline. (b) Determine the initial speed of the second sled.

Which kid will reach the bottom first if they both leave the slide at the same instant?

A frictionless plane is 10.0 m long and inclined at 30.0°. A sled starts at the bottom with an initial speed of 5.30 m/s up the incline. When the sled reaches the point at which it momentarily stops, a second sled is released from the top of the incline with an initial speed v₁. Both sleds reach the bottom of the incline at the same moment. (a) Determine the distance that the first sled traveled up the incline. m (b) Determine the initial speed of the second sled. m/s

A bag leaves a chute with a horizontal speed of 12 m / s. If the chute outlet is 6 m high, determine the time required for the bag to reach the floor and reach R where the bags are stacked. Consider g = 9.81 m / s².   Choose one:The. t = 1.1 s and R = 13.3 mB. t = 2 s and R = 24 mç. t = 3 s and R = 36 md. t = 0.5 s and R = 6 me. t = 1.5 s and R = 18 m

A 2.0k9 particle at a height of 4.0m has a speed of 2.0 m/s down a 53° incline.It slides on the horizontal incline, as shown below, All surfaces have Mk = 0.4. How far along the 37° incline does the particle first come to rest ? 53° |37° 3.0 m

W 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

c) If the pendulum is hanging at the bottom at rest, but is given a sharp kick that gives it an initial velocity v₁ = 1.5 m/s in the horizontal direction, what maximum height he above y = 0 will it attain? v₁ = 0 y = h, y=0-

4. Assume a 5-m ladder sliding down a wall. The variable h is the height of the ladder’s top at time t, and x isthe distance from the wall to the ladder’s bottom. Assume the bottom slides away from the wall at a rate of0.8m/s. Find the velocity of the top of the latter at t = 2s if the bottom is 1.5m from the wall at t = 0s.