A 31.0-kg skateboarder rides on a 10.0-kg skateboard at 5.7 m/s on a level road before jumping into air with a speed of 10.0 m/s against the ground in the direction of 27.0◦ above the forward, horizontal direction to leave the skateboard. Ignore air resistance and the friction between the road and skateboard. What is the maximum height that the skateboarder can reach? (A) 1.05 m; (B) 1.25 m; (C) 1.45 m; (D) 1.65 m; (E) 1.85 m. What is the speed of the skateboard on the ground after the jump? (A) 3.85 m/s; (B) 4.05 m/s; (C) 4.25 m/s; (D) 4.45 m/s; (E) 4.65 m/s. What is the minimum work done by the skateboarder to make the jump? (A) 994J; (B) 974J; (C) 954J; (D) 934J; (E) 914J

Q: You wake up one morning to find yourself in a strange room with opaque walls, and no visible doors…

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: A 62.0-kg skier is moving at 6.90 m/s on a frictionless, horizontal, snow-covered plateau when she…

A: Write the third kinematic equation and substitute the corresponding values to calculate the speed of…

Q: 3. You wake up one morning to find yourself in a strange room with opaque walls, and no visible…

A: Given data:  Initial velocity (Vi) = 0 m/s Mass (m) = 75.8 kg Height (h) = 1.10 m Time (t) = 0.331 s…

Q: For its size, the common flea is one of the most accomplished jumpers in the animal world. A…

A:

Q: *58. A pitcher throws a 0.140-kg baseball, and it approaches the bat at a speed of 40.0 m/s. The bat…

A: It is given that,

Q: A force F → = ( c x − 3.00 x 2 ) i ^  acts on a particle as the particle moves along an x axis, with…

A: W=∫0 m2.8 mFxdx=∫0 m2.8 mcx-3.0x2dx=cx22-x32.80=3.92c-21.95

Q: You wake up one morning to find yourself in a strange room with opaque walls, and no visible doors…

A:

Q: A hockey puck (mass = 1 kg) leaves the players stick with a speed of 30 m/s and slides on the ice…

A: Magnitude of acceleration is, a=v22s=30 m/s22100 m=4.5 m/s2

Q: You wake up one morning to find yourself in a strange room with opaque walls, and no visible doors…

A:

Q: You wake up one morning to find yourself in a strange room with opaque walls, and no visible doors…

A: Given data:  Mass (m) = 77.9 kg Initial velocity (Vi) = 0 m/s Height (h) = 1.79 m Time (t) = 0.302 s…

Q: One of the Kansas City Chiefs jumps up twice to celebrate the OT game winning touch down in the…

A:

Q: Part B Find the maximum height that the block reaches if the incline is 20.3 °. All surfaces are…

A:

Q: 1. A 100 kg box is shot up a 20", frictionless ramp at an initial speed of 9 m/s. A worker is…

A:

Q: A 834-g ball is thrown at a speed of 38.4 m/s from the top of a 45.9-m high cliff. Determine the…

A:

Q: You wake up one morning to find yourself in a strange room with opaque walls, and no visible doors…

A: Mass of the body (m) = 75.1 kg Height (h) = 1.38 m Time (t) = 0.424 sec

Q: Gayle runs at a speed of 3.75 m/s and dives on a sled, initially at rest on the top of a…

A: The initial speed of Gayle = 3.75 m/sThe initial kinetic energy of gayle and sled system =…

Q: Gayle runs at a speed of 3.30 m/s and dives on a sled, initially at rest on the top of a…

A:

Q: You wake up one morning to find yourself in a strange room with opaque walls, and no visible doors…

A: 1850 NExplanation:

Q: A box of mass 19 kilograms is sliding along at 1.4 meters per second. Roy pulls the box in the same…

A: The free body diagram is shown below

Q: Gayle runs at a speed of 4.15 m/s and dives on a sled, initially at rest on the top of a…

A: SOlution: given that mg = 47 kg mb =30 kg ms = 5.35 kg vig  = 4.15 m/s vis=0 vi=0 yf2=-5 m yf3=-15m…

Q: Gayle runs at a speed of 4.55 m/s and dives on a sled, initially at rest on the top of a…

A: Let  m = sled mass M = Gayle's mass M' = brother's mass u = initial velocity of Gayle V = final…

Q: Gayle runs at a speed of 4.35 m/s and dives on a sled, initially at rest on the top of a…

A: Given Data Mass of Gayle=mG=50 kgMass of Gayle's brother=mGB=30 kgMass of Sled=mS=5 kgInitial…

Q: You wake up one morning to find yourself in a strange room with opaque walls, and no visible doors…

A: Given that: m=66.5 kgh=1.02 mu=0t=0.274 seca=?

Q: You are given 3 vectors: p = j - 3k, q = -2i - j - 3k and r = 4i + j + 3k. You are informed that…

A:

Q: A 1500 kgkg car skids to a halt on a wet road where μk = 0.49. How fast was the car traveling if it…

A:

Q: About 70 g of blood is pumped from a person's heart into the aorta during each heartbeat. The blood…

A:

Q: A red 150 g toy car slides down a 40 degree frictionless ramp. At the bottom, just at it exists onto…

A: Let v denote the speed of the purple car, u denote the speed of the red car, M denote the mass of…

Q: A glider of mass 0.275kg is placed at rest on an air track that has an angle of inclination of 10°.…

A:

Q: You wake up one morning to find yourself in a strange room with opaque walls, and no visible doors…

A:

Q: An advertisement shows a 1239 kg1239 kg car slowly pulling at constant speed a large passenger…

A:

Q: Questions 4 through 6 pertain to the situation described below: A 31.0-kg skateboarder rides on a…

A: 4) The maximum height reached by skateboarder, H=u2sin2θ2g On substituting the values, H=102…