7. Running late for class this morning, a student with a mass of 54.0 kg ran up the stairs (total height of 5.45 m) at a constant velocity, in only 6.20 seconds. Determine how much power the student exerted on the stair climb.
Q: A mechanic pushes a 2.50 × 10°-kg car from rest to a speed of v doing 5.00 × 10³ J of work in the…
A: Given data: Mass (m) = 2.50×103 kg Initial velocity (u) = 0 m/s Final velocity = v Displacement (d)…
Q: It takes 165 k] of work to accelerate a car from 21.0 m/s to 27.5 m/s. What is the car's mass? kg
A: Given data The work required is given as W = 165 kJ. The initial velocity is given as u = 21 m/s.…
Q: A 1.50 x 103-kg car starts from rest and accelerates uniformly to 19.2 m/s in 11.7 s. Assume that…
A: Kinematics.
Q: 6. Two cars are at a stop light. When the light turns green the car of mass m begins to move with…
A:
Q: An object with a mass of 4 kg is initially at rest on a horizontal floor. It is then pushed in a…
A: Given: The mass of the object is 4 kg. The initial speed of the object is 0 m/s. The applied force…
Q: 1. Two tugboats pull a disabled tanker with each tug exerting a force of 1.80 x 10 N, one with 14…
A:
Q: A car requires 73.6 hp to maintain a constant speed of 20.4 m/s on a straight, flat road. Assuming…
A: Given data: Power (P) = 73.6 hp Speed (v) = 20.4 m/s 1 hp = 746 W Required: The magnitude of the…
Q: A 8.09 kg box initially at rest on a horizontal surface is pushed by a constant force of 33.9 N that…
A: The free-body diagram of the box is shown below. Here, a is the acceleration, F is the applied…
Q: DETAILS SERPSE10 7.5.P.022. MY NOTES ASK YOUR TEACHER A 4.50-kg particle is subject to a net force…
A:
Q: The initial velocity of a 2-kg particle is (1 i- 3 j) m/s. After some time, the velocity becomes (4…
A:
Q: This is high school physics. Topic: Energy Conservation An unknown force is applied to a 8.0 kg…
A: Given that, Mass (m)= 8 kg Displacement (s)= 15 m Initial speed (u)= 10 m/s Final speed (v)= 20 m/s…
Q: When we are interested in biological energy resources and metabolism, we need to know, among other…
A: The potential of a mass M at height h from the earth ground is U = Mghwhere, M is the mass…
Q: A projectile of mass m is fired at an angle 0 giving it an initial speed of Vo. The projectile…
A:
Q: The graph of the net force acting on the object of m = 1 (kg) along the x-axis is as shown in the…
A:
Q: デジタル形式で段階的に解決 ありがとう!! SOLVE STEP BY STEP IN DIGITAL FORMAT An engine consumes 40.0 hp to propel a…
A: The retarding force is 1.99 kNExplanation:Given:Power, P = 40 hpVelocity, v = 15.0 m/s To find:…
Q: An accelerating object of mass m=7 kg is fired with an initial speed v;=8 m/s at a starting point.…
A: Given: mass of object m = 7 Kg initial speed vi = 8m/s Final kinetic energy KEf = 369 J To find:…
Q: A retired teacher lifts his books weighing 2500 g by a height of 100 cm in 0.03s. How much power…
A: Given data: Mass (m) = 2500 g = 2.500 kg Height (h) = 100 cm = 1.00 m Time (t) = 0.03 s Required:…
Q: 5. Three forces applied to a trunk moves leftward by 3.00 m over a frictionless floor. The force…
A:
Q: A car, starting from rest, accelerates in the +x direction as in the figure. It has a mass of 1.10 ×…
A:
Q: If a car generates 17.3 hp when traveling at a steady 81.3 km/hr, what must be the average force…
A:
Q: The graph of the net force acting on the object of m = 3 (kg) along the x-axis is as shown in the…
A:
Q: Construct Your Own Problem - Consider humans generating electricity by pedaling a device similar to…
A:
Q: A car, starting from rest, accelerates in the +x direction as in the figure. It has a mass of 1.10 ×…
A: mass of car m = 1.1×103 Kg initial speed of car u = 0 m/s acceleration of car a= 4.6 m/s2 time for…
Q: 4. A large water tank is filled by pumping water into it from a reservoir below, using electric…
A:
Q: Two cars are at a stop light. When the light turns green the car of mass m begins to move with…
A:
Q: An advertisement shows a 1239 kg1239 kg car slowly pulling at constant speed a large passenger…
A: The car having a mass of 1239 kg is pulling the Boeing 707 aircraft, with a mass of 62.5 tons, at a…
Q: 2. Ski Jump Ramp. vertical height h from the starting gate to the bottom of the ramp. The skiers…
A: GivenInitial speed (u)=2 m/sFinal speed (v)=30 m/sMass of skier (m)=85 kgWork done by friction and…
Q: A 7.5 kg box initially at rest on a horizontal surface is pushed by a constant force of 34.2 N that…
A: Given, m=7.5kgF=34.20θ=35.60f=16.6Nd=4.75m
Q: n the 1950's, an experimental train, which had a mass of 2.5 x 10^4 kg, was powered across a level…
A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…
Q: 3. An elevator car has a mass of 1 600 kg and is carrying passengers having a combined mass of 200…
A: Given :mc=1600kgmp=200kgFriction = 4000 NP
Q: What is the maximum number of passengers that can ride in the elevator? Assume that an average…
A: mass of elevator = M = 620 Kg vertical distance = h = 20 m time = t = 15.1 s Power = P = 45 hp = 45…
Q: 4. An Olympic weightlifter snatches 100kg. In a snatch, the barbell is moved from a stationary…
A:
Q: Three blocks with masses m1 = 4.31 kg, m2 = 8.73 kg, and m3 = 17.2 kg, respectively, are attached by…
A:
Q: The graph of the net force acting on the object of m = 3 (kg) along the x-ax is is as shown in the…
A:
Q: 5. A0.20-kg rocket in a fireworks display is launched from rest and follows an erratic flight path…
A: Mass, m = 0.2 kgInitial velocity, vi = 0 m/sInitial height, hi = 0 mFinal height, hf = 29 mWork, W =…
Q: Question 2 A projectile of mass m is fired at an angle 8 giving it an initial speed of vo. The…
A:
Q: ing: : Your answer is assumed to be reduced to the highest pow Answer:
A: Given data:Mass(m)= 6.40×101kgTime(t)= 5sHeight(h)= 5mRequired:Power(p)
Q: i need help with these two questions!
A: a)The required speed is,
Q: Using energy considerations, calculate the average force (in N) a 60.0 kg sprinter exerts backward…
A: Given: The mass of the sprinter: m = 60.0 kg. The initial velocity: vi = 2.00 m/s. The final…
Q: A man pushes a 17 kg box from rest to a speed of v, doing 320 J of work in the process. During this…
A: We know thatChange in kinetic energy is called workdoneW=K.Ef -K.EiKinetic energy of object is given…
Q: A mechanic pushes a m=2300 kg car from rest. He does W=4850 J of work in the process. During this…
A:
Q: Q6: If F= (10 s) N, where s is in meters, and the contact surface between the block and the ground…
A:
Step by step
Solved in 2 steps with 2 images
