subject
Physics, 31.05.2021 18:50 emilypzamora11

A weightlifter lifts a barbell of mass 50 kg to a height of 2 m in 3 sec(take g=9.8m/s²​ a) What is the weight of the barbell?
b) What is the work done by the weightlifter?
c) Calculate the power developed by the weightlifter?

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 21:30
Aparticle with mass 1.81×10−3 kg and a charge of 1.22×10−8 c has, at a given instant, a velocity v⃗ =(3.00×104m/s)j^. what are the magnitude and direction of the particle’s acceleration produced by a uniform magnetic field b⃗ =(1.63t)i^+(0.980t)j^?
Answers: 2
question
Physics, 22.06.2019 12:50
Which changes would result in a decrease in the gravitational force btween two objects? check all that apply
Answers: 1
question
Physics, 22.06.2019 16:30
Using gravity, an elephant can pull a mouse towards it from the ground. true or false explain why. will give brainliest if answered fast and the best explanation
Answers: 2
question
Physics, 22.06.2019 17:00
How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters
Answers: 2
You know the right answer?
A weightlifter lifts a barbell of mass 50 kg to a height of 2 m in 3 sec(take g=9.8m/s²​ a) What is...
Questions
question
Mathematics, 24.10.2019 05:00
question
Mathematics, 24.10.2019 05:00
question
Mathematics, 24.10.2019 05:00
Questions on the website: 13722367