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فضلا لا امرا اللي يعرف طريقه دي الاسئله ياليت يسرده هنااااااااااااا سوري ثقلت عليكم

A projectile is fired over level ground with an initial velocity that
has a vertical component of 20 m/s and a horizontal component of
30 m/s. The distance from launching to landing points is:
a) 40 m
b) 60 m
c) 80 m
d) 122.5 m


3. A stone is tied to the end of a string and is swung with constant
speed around a horizontal circle with a radius of 1.5 m. If it makes
two complete revolutions each second, its acceleration is:
a) 0.24 m/s2
b) 240.7 m/s2
c) 2.4 m/s2
d) 24m/ s2



4. Two blocks weighting 250 N and 350 N respectively, are connected
by a string that passes over a massless pulley as shown. The
tension in the string is:
a) 210 N
b) 410 N
c) 290.8 N
d) 500 N



5. A 6-kg object is moving south. A net force of 12 N north on it result
in the object having an acceleration of:
a) 2 m/s2, north
b) 2 m/s2, south
c) 18 m/s2, north
d) 18 m/s2, south



6. The "reaction" force does not cancel the "action" force because:
a) the action force is greater than the reaction force
b) they are in the same direction
c) the reaction force is greater than the action force
d) they act on different bodies



7. A box with a weight of 50 N rests on a horizontal surface with a
coefficient of static friction is 0.4. If person pulls horizontally on it
with a force of 10 N , then
a) the block will not move
b) the block will move to the left
c) the block will move to the right
d) the block will move upward