Consider a 74.0-kg man standing on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.98 m/s in 0.500 s. It travels with this constant speed for the next 5.00 s. The elevator then undergoes a uniform acceleration in the negative y direction for 1.60 s and comes to rest. (a) What does the spring scale register before the elevator starts to move? (b) What does the spring scale register during the first 0.500 s? (c) What does the spring scale register while the elevator is traveling at constant speed? (d) What does the spring scale register during the time it is slowing down?

Q: A basketball player jumps straight up for a ball. To do this, he lowers his body 0.350 m and then…

A: Formula :- We will use the kinematic equation vf2=vi2+2ad  to solve the problem. Where viis the…

Q: A pendulum clock that works perfectly on Earth is taken to the Moon. Assume that the free-fall…

A: Let the length of the pendulum is denoted by l. The time period (T) of the pendulum is given as,…

Q: The elevator starts from rest at the first floor and accelerates at 2.46 ft/s^2 for 5 seconds and…

A: Given, Acceleration,a=2.46 ft/s2 Time,t1=5s,t2=12 s,t3=3 s Height of each floor,h=12.3 ft

Q: As the first human astronaut to land on a distant planet, you are standing on the edge of a small…

A: Given data:  Maximum height reached = 3.0 m Height of cliff = 10 m Acceleration (a) = -5.6 j m/s2…

Q: A particle moving along the x axis with constant acceleration has a velocity of vy = 41.0 cm/s at t…

A: Given that  A particle moving along the x axis with constant acceleration has a velocity of Vy =…

Q: The velocity of a particle moving in the x-y plane is given by (7.15i +4.12j) m/s at time t = 5.37…

A: We are given velocity of particle. We are also given average acceleration. We hence find the final…

Q: 2. Suppose an object with initial temperature To is placed in a sealed container, which is in turn…

A:

Q: The Cassini spacecraft traveled with a companion module, Huygens, that split off so that it could…

A: Given:  u = 0 m/s  a = 1.352 m/s2 h = 1.4 m

Q: At t = 0, a particle moving in the xy plane with constant acceleration has a velocity of v, = (3.00…

A:

Q: A basketball player jumps straight up for a ball. To do this, he lowers his body 0.280 m and then…

A: See below

Q: Buster wants to demonstrate constantly-accelerated motion by letting a frictionless ice cube slide…

A: Concept used: A component of gravity acts horizontal to incline and forces ice-cube down the…

Q: An unidentified flying object (UFO) is observed to travel a total distance of 23000 m, starting and…

A:

Q: An unidentified flying object (UFO) is observed to travel a total distance of 29000 m, starting and…

A: We have, UFO travel to a total distance of 29000 m time duration, T = 4.77 s 1 g = 9.8 m/s2

Q: A basketball player jumps straight up for a ball. To do this, he lowers his body 0.310 m and then…

A:

Q: The gravitational force exerted on a baseball is 2.24 N down. A pitcher throws the ball horizontally…

A: Gravitational force on baseball (weight) = 2.24 N Horizontal velocity (v) = 17 msAccelerating time…

Q: An iceboat sails across the surface of a frozen lake with constant acceleration produced by the…

A: Given data:  Initial velocity (Vi ) = (2.69 î - 2.98 ĵ)m/s Time (t) = 3.00 s Final velocity (Vf) =…

Q: You wake up in a strange room, and this time you drop a ball from a height of 1.74 m, and observe…

A:

Q: In an experiment to determine the viscosity of some oil, a ball is dropped into the oil. The…

A: At t= 0 , we have : y(0) = 0.07 m Vy(0) = 0 ay(0) = 0.03 m/s2  Vy(∞) = 0.45 m/s To find = A , B , C…

Q: A block slides down an inclined plane, starting from rest and being pushed with a constant…

A:

Q: An indestructible bullet 2.00 cm long is fired straight through a that is 10.0 cm thick. The bullet…

A: Average acceleration refers to the rate at which the velocity changes. Here, we calculate  the given…

Q: A tennis ball with a speed of 27.8 m per s is moving perpendicular to a wall. After striking the…

A: The expression for the required acceleration is,

Q: fish swimming in a horizontal plane has velocity vi (4.00i +1.00j) m/s at a point in the ocean…

A: Model of the fish as a particle under constant acceleration. Lets assume that x and y be the…

Q: A car is crashed into a tree at the speed of 144 km/h. It took the car 4 seconds to stop. Assume…

A: Questions based on collision

Q: In the design of a timing mechanism, the motion of pin P in the fixed circular slot is controlled by…

A:

Q: In the figure, a body with a mass of 2 kg moves under the influence of two constant forces F1 = 5N…

A: