(a) At an instant when a soccer ball is slightly off the ground, a player kicks it, exerting a force of 25 N at 40.0° above the horizontal. The force of gravity acting on the ball is 4.2 N [down].

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1. Determine the net force acting on each of the following objects. In each case assume that all
forces acting on the object are given. A
(a) At an instant when a soccer ball is slightly off the ground, a player kicks it, exerting a
force of 25 N at 40.0° above the horizontal. The force of gravity acting on the ball is
4.2 N [down].
(b) Two children pull a sled across the ice. One child pulls with a force of 15 N [N 35° EJ,
and the other pulls with a force of 25 N [N 54° W]. There is negligible friction acting
on the sled.
(c) In a circus act, a performer with a force of gravity of 4.4 x 102 N on her is lifted by two
different ropes at the same time. One rope exerts a tension of 4.3 x 102 N [up and 35° left],
and the other rope exerts a force of 2.8 x 102 N [up].
Transcribed Image Text:1. Determine the net force acting on each of the following objects. In each case assume that all forces acting on the object are given. A (a) At an instant when a soccer ball is slightly off the ground, a player kicks it, exerting a force of 25 N at 40.0° above the horizontal. The force of gravity acting on the ball is 4.2 N [down]. (b) Two children pull a sled across the ice. One child pulls with a force of 15 N [N 35° EJ, and the other pulls with a force of 25 N [N 54° W]. There is negligible friction acting on the sled. (c) In a circus act, a performer with a force of gravity of 4.4 x 102 N on her is lifted by two different ropes at the same time. One rope exerts a tension of 4.3 x 102 N [up and 35° left], and the other rope exerts a force of 2.8 x 102 N [up].
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