9th grade physical science?

[kenway]

26. The property of matter that resists changes in motion is called weight.(Points : 2)
True
False


27. A net force of 30 N leftward is applied on a box; this net force resulted from a 50 N force toward the right and a 20 N force toward the left.(Points : 2)
True
False


28. When a pair of balanced forces acts on an object, the net force that results is(Points : 3)
equal to zero
greater in size than one of the forces
equal in size to one of the forces


37. What is the acceleration of a person whose velocity changes from 2 m/s to 5 m/s in ten seconds?(Points : 3)
0.3 m/s2
0.7 m/s2
1 m/s2

Any help would be greatly appreciated!

[doran]

26)False.
27)false it's just the opposite.
28)equal to zero if it's acting on the opposite side.
37)0.3 m/s2 because a=(v-u)/t therefore 5-2=3 and 3/10=0.3
hope that helped.

[oakley]

26)False.
27)false it's just the opposite.
28)equal to zero if it's acting on the opposite side.
37)0.3 m/s2 because a=(v-u)/t therefore 5-2=3 and 3/10=0.3
hope that helped.

26.false it is mass
27.false 50N towards left and 20N towards right
28.equal to zero as forces cancel each other
37.0.3m/s^2 a=(v2-v1)/t