Which force can possibly act on a body moving in a straight line? a) Tangential force b) Friction force c) Centrifugal force d) Centripetal force
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Which force can possibly act on a body moving in a straight line?
a) Tangential force
b) Friction force
c) Centrifugal force
d)
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- The game of tetherball involves a ball tied to a rope the other end of which is tied to the top of a pole. Players try to hit the ball around the pole in opposite directions until it is completely wrapped around the pole. What forces make the ball move in a circle around the pole? a) The tension in the rope accelerates the ball in the direction of its motion b) Gravity and the tension in the rope combine to make a horizontal force toward the pole c) Gravity pulls the ball down and the tension in the rope pulls the ball toward the poleSee attachedBlock A has a mass of 3.00 kg and block B has a mass of 8.00kg. The two blocks are stacked on the ramp with an incline of angle = 30 degrees. Determine the largest horizontal force F that can be applied to block B
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- A 100. N force is applied to a 21.2 kg crate to slide it along a rough horizontal surface. The diagram shows the forces acted on the crate in this situation. What was the magnitude of the normal force acting on the crate? (a) 208 N (b) 258 N (c) 121 N (d) 69.6 N (e) 158 NIn the super market, Gabby pulls her grocery cart by exerting a force F, shown in the Figure below. 55° (20.0 N) 8. Which one of the following diagrams correctly shows the x and y component-vectors of the force F? A) B) C) 55° 55° 55° (20.0 N) (20.0 N) (20.0 N) +X D) E) 55° 55° (20.0 N) (20.0 N) +X +x 9. The scalar x component of the force F is equal to B. - 11.5 N. C. 16.4 N. D. 11.5 N. E. - 28.6 N. A. 16.4 N. 10. The scalar y component of the force F_is equal to C. 11.5 N. D. 11.5 N. E. -16.4 N. A. - 28.6 N. B. 16.4 N.You need to cross a river but you don't care where you land on the other side. Question 2 options: You will cross faster if you swim into the current so you do not drift. the fastest way across is to swim at an angle to the current You cannot change the rate you cross the river by swimming in any direction the fastest way to cross is to point straight across the river
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