A lift motor has to move a fully laden lift 4 m between floors in 1.5 seconds. the lift has a mass of 1850 kg (Ignore Friction). Calculate the weight of the fully laden lift O a. 18500 KN O b. 1850 g O c. 1850 kg O d. 18500 N
Q: 12.) A 2kg rock is moving at a speed of 6m/s. What is the magnitude of the force needed to stop the…
A: Given, A 2kg rock is moving at a speed of 6m/swe are asked to the magnitude of the force needed to…
Q: 1. Under a constant force, a 10 kg ball increases its speed from 2.0ms1 to 7 ms1 after covering 50…
A: Given data The mass of the ball is given as m = 10 kg. The initial velocity of the ball is u = 2…
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: Describe an object that has a lot of kinetic energy, but not very much mass.
A: Kinetic energy: It is defined as the energy possessed by the body by virtue of its motion. Let us…
Q: 357 kg car is moving at 35–. The driver then accelerates at 3.5 for 18.3s s2 a. How fast is the car…
A: given m=1857 kg initial velocity u=35 m/s acceleration a= 3.5 m/s2 t=18.3 s v = u…
Q: An actor whose mass is 75 kg jumps from the platform. Determine the speed of the actor as it hits…
A: Given that: height, h=5 mg=9.8 m/s2mass, m=75 kgv=?
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: 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 Physics book of unknown mass is dropped from rest 5.5 m. a). Draw a sketch of the scenario. b).…
A:
Q: 10. An olympic long jumper (86 kg) throws themselves at a 30* angle to the horizontal. Calculate the…
A: solution is give as
Q: 46. Roller coasters use some of the most sophisticated technology. Safety is a big part of that…
A:
Q: 4. An 8000 kg roller coaster, traveling along the frictionless track shown, has velocity v, = 30…
A:
Q: A computer on the table is at rest. This means that A. Computer has no energy B. No net…
A: Balanced forces are the force that acts on the object in an equal magnitude and opposite direction.…
Q: Compared to the recoiling rifle, the bullet has more a. mometum b. kinetic energy c. none of…
A: We are given a system. This system contains bullet and rifle. Since they both form system, there is…
Q: A 50kg box and a 15 kg box are dropped from a 50 m cliff at the same time, from rest. Which of the…
A:
Q: 2. When you weigh yourself on solid ground, your weight is 790 N. You stand on a bathroom scale in…
A:
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: f an object has kinetic energy, it must also have A. Potential energy B. Momentum C. Power D. Impuls
A:
Q: 7. A 20.0 kg box traveling initially at 5.0 m/s slides to a stop on a surface where μ=0.300. Δd =…
A:
Q: O when it leaves the gun? O a. 5 m/s Ob. 20 m/s O c. 10 m./s cm. How last will a Gar
A: Spring constant = K = 250 N/m Compressed length = x = 5cm = 0.05 m Mass = m = 0.025 kg
Q: ot a 51 g ring consta tched by 0. s the pebble
A: We know that As per given The catapult is initially stretched by x =0.2 m The pebble files let a…
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- 2. A child slides down frictionless playground slides of equal height, starting from rest at the top.a. Find the ratio of the child’s acceleration on slides with different angles of incline. (Show the work of breaking g into components.)?1?2= ______________________________b. Find the ratio of the child’s final speeds on slides with different angles of incline. (Hint: use energy)?1?2= ______________________________c. Find the ratio of the child’s distances down slides with different angles of incline.?1?2= _____________________________ please write your work clearly and write a detailöaalg äbäi A horizontal force of 1.5 N acts on a 0.2kg mass to accelerate it along a horizontal path. How fast is the mass going after acceleration from rest through 0.3 m? Neglect the *.friction 2.1 m/sec 3.66 m/sec 2.54 m/secThe driver of a 2150 kg car applies the breaks on a dry concrete road. Calculate the force of friction required to stop the car (uk=1.02) if the car was originally moving at 30 km/h calculate its stopping distance.
- A cat kicks a 0.43 kg chees block that was initially at rest. the net force is 20. What is the cheeses speed at t= 20 msQUESTION 28 You push a 80-kg file cabinet to the right on a frictionless horizontal surface with a force of 175 N from rest, the cabinet moves a distance of 12 m. What is the final speed of the cabinet, in m/s? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.A 5.2 kg ball is rolling at a speed of 6.3 m/s when it encounters a ramp. How high can it roll up the ramp before coming to astop? (put your answer with 3 decimal places!) m
- 8. 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.10. A stationary block is released on a frictionless ramp at a height of 3.0 m. There are other hill heights along the ramp as shown in the figure. The hills have identical circular tops, and the block does not fly off any hill. If the mass of the block is 4 Kg, what would be the velocity as it passes hill (1)?A car of mass 1670kg initially at a speed of 80 km/m crushes into a wall, if the accident lasted for 0.2 sec. what is the amount of force exerted in the car during the crash
- A cart of unknown mass is placed on a track. The cart is connected to a hanging weight of unknown mass via a string over a pulley and the hanging weight is allowed to drop to the floor. The following graph is collected. which of the following can I learn from the slope of this graph? a. mass of the hanging weight b. work done on the cart by the hanging mass c. velocity of the cart d. mass of the cart6. 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°56. When the speed of an object is quadrupled, its kinetic energy is A. doubled B. increased by 16x C. quadrupled D. increased by 8x E. decreased in half