Eric with a mass of 65 kg starts going down on an elevator. It starts accelerating downward from rest at 2.5 m/s. The elevator's mass is 1185 kg. Assume upward is positive. Round all answers to the whole number. 1. There are forces acting on the system. 2. The weight of the system is N. 3. The tension of the cable is N. 4. The elevator moves m after 3.0 s.

Eric with a mass of 65 kg starts going down on an elevator. It starts accelerating downward from rest at 2.5 m/s. The elevator's mass is 1185 kg. Assume upward is positive. Round all answers to the whole number. 1. There are forces acting on the system. 2. The weight of the system is N. 3. The tension of the cable is N. 4. The elevator moves m after 3.0 s.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 63AP: A person doing a chin-up weighs 700 N, exclusive of the arms. During the first 25.0 cm of the lift,...

See similar textbooks

Similar questions

. As a baseball is being caught, its speed goes from 30 to 0 m/s in about 0.005 s. Its mass is 0.145 kg. (a) What is the baseball’s acceleration in m/s and in Ws? (b) What is the size of the force acting on it?
Suppose a 60.0-kg gymnast climbs a rope. (a) What is the tension in the rope if he climbs at a constant speed? (b) What is the tension in the rope if he accelerates upward at a rate of 1.50 m/s2?
Consider the baby being weighed in the following figure. (a) What is the mass of the infant and basket if a scale reading of 55 N is observed? (b) What is tension T1in the cord attaching the baby to the scale? (c) What is tension T2, In the cord attaching the scale to the ceiling, If the scale has a mass of 0.500 kg? (d) Sketch the situation, indicating the system of interest used to solve each part. The masses of the cords are negligible.
. The Kingda Ka roller coaster in New Jersey is the world’s tallest ride of its kind. As the passenger cars are launched from rest at the start, they are accelerated uniformly to a speed of 57 m/s (128 mph) in just 3.5 s. (a) What is the acceleration experienced by passengers on this ride in m/s2? In g’s? (b) If a certain passenger has a mass of 65 kg, what is the force in newtons that acts on him during the launch phase of this ride? What is the force in pounds?
Find an expression for the carts acceleration in Figure P5.18 in terms of the balls mass m and the angle .
Suppose you have a 120-kg wooden crate resting on a wood floor. (a) What maximum force can you exert horizontally on the crate without moving it? (b) If you continue to exert this force once the crate starts to slip, what will the magnitude of its acceleration then be?
The force on a baseball as with a bat can be more than 8,000 lb. No human can push on a bat with that much force. What is happening in this instance?
Suppose au airline allows a maximum of 30 kg for each suitcase a passenger brings along. (a) What is the weight in newtons of a 30-kg t1ikasr? (b) What is the weight in pounds?
A) Jim Bob needs to tow his truck home using his neighbor's SUV. The SUV pulls the truck by exerting a horizontal force of 3062 N. If this force alone causes the truck to accelerate at a rate of 2.73 m/s2, what is the mass of Jim Bob's truck? B)A 38.2-kg object is in free fall near the surface of the Earth. What is its weight?
It takes the elevator in a skyscraper 4.0 s to reach its cruising speed of 10 m/s. A 60 kg passenger gets aboard on the ground floor. What is the passenger’s apparent weighta. Before the elevator starts moving?b. While the elevator is speeding up?c. After the elevator reaches its cruising speed?
Johnny pulls a box of mass 20 kg with a force of 25 N at an angle of 35o with the horizontal. ( use g =9.81 m/s2) 1. ignoring friction, what is the acceleration of the box? 2. What is the weight of the box? 3. What is the normal force exerted on the box by the ground?
E12. Jennifer has a weight of 110 lb. a. What is her weight in newtons? (1 lb = 4.45 N) b. What is her mass in kilograms?