krfFebbibibohld
krfFebbibibohld krfFebbibibohld
  • 10-05-2016
  • Physics
contestada

What is the acceleration of a7kg mass if a force of 68.6n is used to move it toward earth

Respuesta :

EjerciciosFyQ
EjerciciosFyQ EjerciciosFyQ
  • 10-05-2016
In this case you must consider two effects: the action of the force and the effect of the weight of the object:

[tex]F_T = m\cdot a\ \to\ f + p = m\cdot a\ \to\ a = \frac{f + (m\cdot g)}{m}[/tex]

[tex]a = \frac{68,6\ N + (7\ kg\cdot 9,8\ m/s^2)}{7\ kg} = \frac{137,2\ N}{7\ kg} = \bf 19,6\frac{m}{s^2}[/tex]
Answer Link

Otras preguntas

Is velocity related to momentum
When this car moves forward by 180 cm, each wheel does one full turn. What is the diameter of the wheels to the nearest centimetre?
If a 35 ft rope is cut into two sections with one section 6 times as long as the other section, how long is the shorter piece?
Choose the right variant 1 This book will take to years to write. A. After two years I'll write this book B. In two years time I'll have written this book C . A
Why are chloroplasts absent in epidermal cells ?
Lim[(sqrt(cos(2x))-cubicrootof(cos(x))]/arctg(x^2) when x->0
Six nickels is what percent of one dollar? What percent of $2.00 would it be? Please help.
What does the random variable (r) for a binomial experiment of n trials represent?
If a store credit account charges 1.5% interest each month, what is the APR?
7.25 times 8 1/2= what?