a field hockey ball is launched from the ground at an angle to the horizontal. what are the ball's horizontal and vertical accelerations at its maximum height?
How to calculate moments with 3 separate weights of different amounts at different points? 200N 100N 300N ------------------------------------------------------------------------------------- <---------------2M----------------> /_\ <---------------2M--------------> <-------1M---------> what would the moments be?
A ski jumper competing for an Olympic gold-medal wants to jump a horizontal distance of 135 m the take off point of the ski jump is that a height of 25 m with what horizontal speed must he leave the jump
A force exerted over a distance to move an object is a. measured in newtons b. velocity c. momentum d. work
A professional cyclist rides a bicycle that is 92 percent efficient. For every 100 joules of energy he exerts as input work on the pedals, how many joules of output work are used to move the bicycle?
a man is on a game show. he is presented with two doors, one on the left, and one on the right. behind one is 2 million dollars, and behind the other is a donkey. choose the correct door to win the prize. there are also two men in front of the doors, and they know which door leads to the millions. one wears a black hat, the other wears a white hat. the host explains that one of the men is a liar, and will always lie, and the other man will always tell the truth - but you don't know which is which. you can only ask one of the men only one question. what is the question, and which man do you ask to ensure you win the money?
A force of 20. Newtons to the left exerted on a cart for 10. Seconds. For what period of time must a 50.-newton force to the right act to produce an impulse of equal magnitude on the cart?
Multiple Choice: A small amplitude transverse wave is travelling on a string. The frequency of the wave is suddenly doubled. Which one of the following is a true statement? a) The period of the wave doubles b) The wavelength doubles c) The speed of the wave doubles d) The wavelength is cut in half e) The speed of the wave is cut in half
a force of 300N[S] is applied to a 50kg box on a rough floor. The frictional force is 200N. The acceleration is 2m/s^2. if the 300N force is removed after 4.0s, how long will it take the box to come to rest? please show ALL your work!
Imagine an astronaut with a mass of 70 kg floating in space 10.0 m away from the center of gravity of an Apollo command module whose mass is 6.00× [tex] 10^{3} [/tex] kg determine the gravitational force acting on, and the resulting acceleration ( at that instant) of both the ship and person
A 90-kg tight end moving at 9.0 m/s encounters at 400 N•s impulse. Determine the velocity change of the tight end.
