A 75.0-kg man stands on a bathroom scale in an elevator that accelerates from rest to 30.0 m/s in 2.00 s. (a) Calculate the scale reading in newtons and compare it with her weight. (The scale exerts an upward force on her equal to its reading.)

Q: A force of 25.0 N is applied in the positive x-direction to a block of mass 9.25 kg, at rest on a…

A: Given,

Q: A 33.9 kg woman stands on a bathroom scale while riding an elevator. Determine the reading on the…

A:

Q: A hockey puck goes from 0 to 108 mph in 1/10 seconds. The acceleration is uniform. The puck has mass…

A: (a)ans:-. Use formula    V=u+at

Q: A physics student (90 kg) on skis is pulled horizontally across the dry snow with a rope. If there…

A: According to Newtons second law, F=ma                        (I)           m=mass,a=acceleration

Q: Consider the 65.0-kg ice skater being pushed by two others as shown in the figure below.   (a) Find…

A: Given: The mass of the ice skater is m = 65 kg The magnitude of the two forces is given by |F1| =…

Q: wooden table. If you apply a horizontal force of 3 N to the block. Using your knowledge of friction…

A: Mass(m) = 0.1 kg Applied force (F) = 3 N

Q: An acrobat with a mass of 41-kg jumps on a trampoline.  What force does a trampoline have to…

A: Given:Mass of acrobat, m  = 41 kgAcceleration of acrobat, a = 7.5 m/s2 Acceleration due to gravity,…

Q: An acrobat with a mass of 46 kg jumps on a trampoline.   What force does a trampoline have to apply…

A: The objective of the question is to calculate the force that the trampoline needs to apply to…

Q: Sarah stands on a bathroom scale inside an elevator. Sarah's mass is 50 kg. What does the scale read…

A: Given Mass is m=50 kg Acceleration due to gravity is g=9.80 m/s2 Uniform Velocity of elevator is…

Q: An elevator, moving upward, decreases in speed from 8.20 m/s to 1.99 m/s in 2.03 s. Assuming…

A: Given values, Initial velocity of elevator, u=8.20 m/s Final velocity of elevator, v=1.99 m/s time,…

Q: A net force of 500 N gives an object an acceleration of 4.00 m/s². (a) what net force is needed to…

A: (a) First find the mass of the object m=Fa   =500 N4.00 ms2   =125 kg The force required to give the…

Q: A boat moves through the water with two forces acting on it. One is a 1,500-N forward push by the…

A:

Q: A person of weight 480 N stands on a scale in an elevator. What will the scale be reading when the…

A:

Q: An "old -man" stands on a scale in an elevator that is at rest . The scale reads 500 N The elevator…

A: Given Upward acceleration of elevator a=0.75 m/s2 Weight scale reading when elevator is a rest…

Q: An engineer claims to have a new kind of "safety" air-brake for elevators. If the cable should snap,…

A: Mass, m = 700 lb = 700×0.453 kg = 317.1 kgSpeed, v = 40 mph = 40×0.447 m/s = 17.88 m/sTime, t = 1/20…

Q: A man pulling an empty wagon causes it to accelerate at 1.4 m/s2. What will the acceleration be if…

A:

Q: It takes the elevator in a skyscraper 3.0 s to reach its cruising speed of 9 m/s. A 50 kg passenger…

A:

Q: A crate with mass 23.5 kg initially at rest on a warehouse floor is acted on by a net horizontal…

A: Given data: Mass of the car, m=23.5 kg Net force, F=100 N (a) From Newton’s second law, acceleration…

Q: In the figure, blocks A and B have weights of 47 N and 22 N, respectively. (a) Determine the minimum…

A: In the question it is given that two blocks A and B both of weight 47 Newton and 22 Newton To find…

Q: ckey puck slides down a frictionless ramp with an acceleration of 5.00 m/s2. What angle does the…

A: We know that We have given that The hockey puck slides down a frictionless ramp with an acceleration…

Q: A 78.0-kg man stands on a bathroom scale inside an elevator. (a) The elevator accelerates upward…

A:

Q: If you have a mass of 100 kg on the earth and are taken to a planet where the acceleration of…

A:

Q: Someone is standing on a scale inside an elevator. When the elevator is accelerating upward, the…

A: Reading of elevator while going up,                               Reading of an elevator while going…

Q: A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the…

A: Given data: Weight of woman in elevator is, W'=0.795×W.              (W is the regular weight of…

Q: A 25-kg fox accelerates at a constant 8.5 m/s², from 1.3 m/s to 16.7 m/s. Neglecting air resistance,…

A: Given Mass of box is m=25 kg Acceleration of fox is a=8.5 m/s2 According to Newton's second law,…

Q: In the figure, blocks A and B have weights of 47 N and 22 N, respectively. (a) Determine the minimum…

A:

Q: A lamp hangs vertically from a cord in a de scending elevator that decelerates at 2.4 m/s², (a) If…

A: Here we have to find (a) Lamp's mass and (b) Cord's tension For each free body diagram of the FBD,…

Q: What will a spring scale read for the weight of a 58kg woman in an elevator that moves (a) with…

A: The objective of the question is to find the reading on a spring scale for a woman of mass 58 kg in…

Q: An 80 kg man stands on a bathroom scale inside an elevator. The scale is calibrated in Newtons.…

A: The weight of the person when elevator is at rest is, W=mg    =80 kg9.8 m/s    =784 N

Q: were to search 10. A 79-kg person stands on a bathroom scale and rides in an ele- vator whose…

A: According to question we need to find acceleration for t  = 8 sec.

Q: You work at a garden store for the summer. You lift a bag of fertilizer with a force of 122 N, and…

A:

Q: skydiver reaches a "terminal velocity" of 120 km/h. If the skydiver has a mass of 59.0 kg, what is…

A:

Q: Suppose the mass of a fully loaded module in which astronauts take off from the Moon is 10,400 kg.…

A:

Q: Albert weights 85kg stands on a scale inside an elevator. What is the weight in Newton that the…

A: Given that: Mass of albert: m=85 kg To determine the weight that the scale reads: (a) at rest? (b)…

Q: A person weighs a 5.0 kg fish using a spring scale attached to the ceiling of an elevator. What does…

A: Given  Fish  weight = 5 kg  The external forces acting on the fish are the downward force of gravity…

Q: A relative of yours belly flops, from a height of 2.50m (ouch!), and stops moving, after descending…

A: It is given that,

Q: A force of 35.0 N is applied in the positive x-direction to a block of mass 8.50 kg, at rest on a…

A:

Q: A 75.0-kg woman stands on a bathroom scale in an elevator that accelerates from rest to 30.0 m/s in…

A: Given data: Mass of women, m=75.0 kg Initial velocity, u=0 m/s Final velocity, v=30.0 m/s Time,…