Question 17 of 32 A boy is trying to roll a bowling ball up a hill, as shown in the image below. If friction is ignored, what is the minimum initial velocity that the ball must have for it to reach the top of the hill? (Recall that g = 9.8 m/s²) 22.5 m A. 28 m/s t
Q: A stuntman of mass 55 kg is to be launched horizontally out of a spring- loaded cannon. The spring…
A: Mass of stuntman (m) = 55 kg Spring coefficient (k) = 266 N/m Compression in spring (x) = 5 m Need…
Q: An object of mass m is at rest at the top of a smooth slope of height h and length L. The…
A: Total energy of the system at top point is due to the gravity. And just before reaching the bottom…
Q: A ball is dropped from rest at the top of a 4.94-m-tall building, falls straight downward, collides…
A:
Q: Q8: A ball of mass 0.5 kg is dropped from a height h=2.0 m above the ground as shown in the figure.…
A:
Q: A 1000 kg automobile is moving at 30 m/s at a height of 5.0 m above the bottom of a hill when it…
A: Mass ( m ) = 1000 kg Height ( hi ) = 5 meter Velocity ( uf ) = 30 m/s
Q: 1- A hijacker drops an 80 kg chest of gold from an airplane. Neglecting air resistance, how far does…
A: (1) Assume a mass(m) chest of gold in a kilogram is dropped by a hijacker from an airplane.…
Q: Q10: A block having a mass of 1.0 kg is given an initial velocity VA-1.6 m/s to the right and…
A:
Q: An all-star cheerleading team throws a 40 kg flyer cheerleader into the air from an initial position…
A: We know that time to reach maximum height of a projectile is given as T=ug Where u is initial speed…
Q: A freight car in a park moves along a frictionless level railroad track at constant speed. The…
A: Given:A freight car moves along a frictionless level railroad track at constant speed.The freight…
Q: M A spring with spring constant k = 100 N/cm is compressed by a distance Ax = 5 cm then used to…
A:
Q: 8. The driver of a car steps on the gas, and the car accelerates with acceleration a. When writing…
A: Option 1 The normal force is always acting normal to the object. Which is wrong statement. Option 2…
Q: A ball is dropped from rest at the top of a 5.44-m-tall building, falls straight downward, collides…
A:
Q: A hand pushes block A (ma = 3 kg) with a constant force Nand. A 75 N for a distance Ax = 2 m along a…
A: In the elastic collision, both the energy and the momentum are conserved. Whereas, in an inelastic…
Q: 16. A roller coaster engineer (yes, there is such a thing) is considering three different designs…
A: The three different designs for roller coaster are represented as : "X" , "Y" , "Z". The initial and…
Q: A 6.0 kg object is projected directly upward with an initial speed of 15 m/s. This object…
A:
Q: A 8-kg box is pushed 10 m across a level floor by a constant 14.7-N applied force. The coefficient…
A: Write the net force acting along horizontal direction .
Q: A roller-coaster car shown in the figure is pulled up to point 1 where it is released from rest.…
A:
Q: = 75 N for a distance Ax = 2 m along a (mostly) A hand pushes block A (ma =3 kg) with a constant…
A:
Q: A box starts with a velocity of 10 m/s and falls along the frictionless path shown below. What is…
A: Apply conservation of energy at each points, At B,…
Q: A 1500 kg car skids to a halt on a wet road where 4 = 0.51. You may want to review (Pages 141 - 145)…
A:
Q: A roller-coaster car has a mass of 500 kg when fully loaded with passengers (a) If the car has a…
A: Mass , m = 500 kg Velocity at point A , VA = 20 m/s To find = velocity at point B .
Q: A car is parked at the top of a 70-m high hill. It slips out of gear and rolls down the hill. How…
A: solution as
Q: A skier starts from rest at the top of a rictionless incline of height 20.0 m, as shown in the…
A: Given data as per question Friction between skis and snow =0.209 Calculation speed at bottom at…
Q: An 83 kg man lowers himself to the ground from a height of 8.7 m by holding onto a rope that runs…
A:
Q: 4) The total mass of the sled and the driver on it in the figure is 125 kg. The driver is moving up…
A: Explanation and solution shown in the picture below
Q: A vehicle applies it breaks for 102 ft before departing the roadway. The roadway surface friction…
A:
Q: BOX 1.25m 34° Assuming no friction and the box starts at rest, what will be the speed of the box at…
A:
Q: You kick a soccer ball of mass 0.42kg initially on the ground with a speed 6m/s at an angle 55 above…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- 3. Which of the following statements correctly describes the relationship between an objects kinetic energy and its speed? a. E k is directly proportional to the speed of the object b. E k is directly proportional to the speed squared of the object c. E k is inversely proportional to the speed of the object d. E k is inversely proportional to the speed squared of the object e. none of the above describe the relationshipA 40.2 box initially at 4.19m/s on a rough surface is brought to rest by an 18.7N force due to friction what distance does the box slide use there significant figuresQuestion 23 Two frisky otters slide down frictionless hillsides of the same height but different slopes. The slope of the hill of otter 1 is 30°, while the slope of the hill of otter 2 is 60°. If both start from rest, which otter is moving faster when she reaches the bottom of her hill? O The otter that took the shorter time is moving faster. O Otter 2 is moving faster. O The heavier otter is moving faster, no matter which hill she used. O Otter 1 is moving faster. O Both otters have the same speed at the bottom.
- QUESTION 7 From the diagram below, what is the speed of the block when it reaches point A at the lowest point on the surface? 2.00-kg block with an initial velocity of 5.00 m/s down the track Frictionless track В 9.00 m 5.00 m A a. 11.2 m/s b. 9.70 m/s C. 14.2 m/s d. 15.7 m/s е. 12.7 m/stime = 0 time = t -10 kinetic friction A block slides on a horizontal plane. The initial speed is vo = 2.5 m/s. - V The block slows down because of friction; the coefficient of kinetic friction is 0.100. At time t the speed is vo/2. What is t? (in s) OA: 1.089 OB: 1.274 OC: 1.491 OD: 1.744 OE: 2.041 OF: 2.388 OG: 2.794 OH: 3.269The ABC part of the road in the figure is frictionless, beyond C the friction coefficient is u = 0.5. A ball with m = 2 kg is thrown from point A with a speed of 3 m / s. How many meters will the ball travel from point C until it stops? 3m/s 1.2 m a) 3.24 m b) O 2.53 m C) O 2.82 m d) 4.14 m e) 1.24 m
- 71.Block 2 shown below slides along a frictionless table as block 1 falls. Both blocks are attached by a frictionless pulley. Find the speed of the blocks after they have each moved 2.0 m. Assume that they start at rest and that the pulley has negligible mass. Use m, = 2.0 kg and m₂ = 4.0 kg. 20 Solution8. A 534 N boy drops from a diving platform 12 m above the water. Find the boy's speed 4m above the water's surface. Then find his speed just before hitting the water.On the roller-coaster shown, a car is moving 10 m/s toward the right at point 1. Assuming no friction, calculate the speed of the car at point 4. 3 40 m 26 m 15 m 29.37 m/s 22.71 m/s 20.89 m/s 26.17 m/s A. D. В. 25.07 m/s Е. С. 24.29 m/s F.
- You want the final speed at the bottom of your roller coaster hill to be 25 m/s. What is the height (h) of the hill to achieve this? Use g = 9.8 m/s25. A top WNBA player can jump about .7 meters off the ground. If her mass is 50 kg, what force must she exert against the ground? Assume she crouches a distance of .2 metes prior to jumping, and thus the upward force has this distance to act before leaving the ground. 6. A block is given an initial speed of 4 meters per second up the 0 = 22° plane shown below. Ignoring friction, %3D (a) how far up the plane will it go? (b) How much time elapses before it returns to its starting point? R 4m/s s 22°6. Two packages that start sliding down a 20° ramp from rest a distance d = 4.30 m. For package A: Ma = 5.00 kg and ukA = 0.30. %3D For package B: mB = 7.00 kg and ukB = 0.20. Find the speed of both packages when they reach the bottom. 20°