Two children are holding on to opposite ends of a rope

Reference no: EM13661609

1. Two children are holding on to opposite ends of a rope. The one on roller skates is being swung around in circles. if the moving child weighs 75 lb, if he attains constant speed of 12 ft/s, and if the rope is 10 ft long, how much tension is in the rope. Neglect friction

2) As a boy pulls a sled carrying his sister, he exerts a force of 2.6 lb at an angle of 30 degrees with the ground. How much work does he do if he pulls her at a constant speed for exactly one-half mile?

Reference no: EM13661609

Questions Cloud

Gravitational frequency change with respect to earth : A satellite operates at an altitude of 20,200 km and uses communication frequencies of1575.42 MHz. Find the gravitational frequency change with respect to Earth.

Decide the required focal length of the eyepiece : The desired overall magnification of a compound microscope is 140x.The objective alone produces a lateral magnification of 12x. Decide the required focal length of the eyepiece.

Astronaut arrives at a new planet-what is mass of planet : An astronaut arrives at a new planet, and gets out his simple device to decide the gravitational acceleration there. Prior to this arrival, he noted that the radius of the planet was 7040 km. If his 0.400-m-long pendulum has a period of 1.0 s, what i..

Explain these statistics results : Explain these results to a person who has never had a course in statistics - An experiment is conducted in which 60 participants each fill out a personality test,

Two children are holding on to opposite ends of a rope : Two children are holding on to opposite ends of a rope. The one on roller skates is being swung around in circles. if the moving child weighs 75 lb, if he attains constant speed of 12 ft/s, and if the rope is 10 ft long, how much tension is in the ro..

Microwave oven is powered by electron tube called magnetron : A microwave oven is powered with an electron tube called a magnetron that generates electromagnetic waves of frequency 2.30 GHz. The microwaves enter the oven and are reflected with the walls.

Congress established the fda pursuant to the food : Congress established the FDA pursuant to the Food

How would you explain the right of privacy : How would you explain the right of privacy to someone from another country? Please be mindful that someone from another country will not be able to understand out legal principles or terminology

Briefly explain who a hacker is : Briefly explain who a hacker is and what the activities of a hacker are?

User Account

All Pages