I need help plzzzzz help Plysics The law of motion A woman weighs 251 lb. Determ

Question

I need help plzzzzz help Plysics The law of motion

A woman weighs 251 lb. Determine the following. (a) her weight in newtons N (b) her mass in kilograms kg A 1.00-kg object undergoes an acceleration given by = (3.00 + 6.00 ) m/s2. (a) Find the resultant force acting on the object. (b) Find the magnitude of the resultant force. Two forces and act on a 7.60-kg object. F1 = 40.0 N and F2 = 14.0 N. (a) Find the acceleration of the object for the configuration of forces shown in Figure (a). (b) Find the acceleration of the object for the configuration of forces shown in Figure (b).

Explanation / Answer

1

a)251 lb =114.09 Kg

weight=mg= 1119.2 N

b)

mass =114.09 Kg

2)

a) f=ma = 3N i +6N j

b) f magnitude=root of 3^2 +6^2 =6.7 N

3

a))net acceleration magnitude = 42.38/7.6 =5.57 m^2/s

direction= cos inverse (14/40) =19.3 degree

b) net force magnitude =52.6 N

thus net acceleration magnitude =52.6 /7.6 =6.92 m^2/s

direction= cos inverse (7/52.3) =7.62 degree

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