A brass block of mass m resting on a horizontal frictionless surface is given a horizontal acceleration of 4.5 m/s^2 by a force of 8.7 N. a) what is the mass of the block? b) What is the weight of the block?
2006-07-19 05:10:41 · 5 answers · asked by Lou 1 in Science & Mathematics ➔ Physics
F = MA is the biggest equation you have to know for Physics.
Force = Mass * Acceleration
8.7 N = m * 4.5m/s^2 .... m = 1.933333 kg
Weight is mass times gravity (if you're on earth, gravity value is different on different planets)
1.9333333kg * 9.81m/s^2 = 18.966N
hope that helps :-)
2006-07-19 05:16:01 · answer #1 · answered by bablunt 3 · 1⤊ 1⤋
while human beings convey the degree of weight in kilograms or grams, they're certainly speaking of kilograms-stress or grams-stress (previous unit of stress). a million kgf is the stress that the Earth acts upon an merchandise of mass 1kg on the floor of the Earth for this reason a 60-kg guy is a guy who has a mass of 60 kilogram (mass) and who weights 60 kilogram-stress (additionally, kilogram-weight) on the floor of the Earth.
2016-10-08 02:22:09 · answer #2 · answered by vanderbilt 4 · 0⤊ 0⤋
Force = mass times acceleration.
Force=8.7 N=8.7 kg*m/s^2
Acceleration = 4.5 m/s^2
F=ma => m=F/a
m=(8.7 kg*m/s^2)/4.5 m/s^2 = 1.9 kg
You can find weight from there.
2006-07-19 05:15:23 · answer #3 · answered by Brian L 7 · 0⤊ 0⤋
sorry, have done enough of your homework today. now it's your turn.
2006-07-19 05:14:17 · answer #4 · answered by Anonymous · 0⤊ 0⤋
w=mg
m=w/g
2006-07-19 05:12:49 · answer #5 · answered by Anonymous · 0⤊ 0⤋