Question

If the 1 kg standard body has an acceleration of 2.00 m/s2 at 20.0° to the positive direction of an x axis, what are (a) the x component and (b) the y component of the net force acting on the body, and (c) what is the net force in unit-vector notation?

Answer 1

a) Fx = M * 2.00 cos 20 m/s^2 = 18.79 n
b) Fy = M * 2.00 sin 20 m/s^2 = 6.82 n

c) Fx i + Fy j

i and j are unit vectors

Answer 2

Does M represent gravity ?

Answer 3

2. If the 1 kg standard body has anacceleration of 2.00m/s3 at 20% to the positive direction of an x axis, what are a the x component and (b) the y component of the net force acting on the body, and c) what is the net force in rectornotation?

Answer 4

A 2.00 kg object is subjected to three forces that give acceleration ( ) ( )j sms ima rrr 22 /6/8 += − . If two of the three forces are ( ) ( )j NN iF rrr 16.030.01 += and ( ) ( )j NN iF rrr 8.012.02 += − , find the third force.