10. (A) Weight = m g
W = 60 x 9.8
W = 588 N .....Ans
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10. You are on roller blades on top of a small hill. Your potential energy is...
Imagine a roller coaster that starts at the top of a big hill, and goes immediately into a loop-the-loop. If the mass of you and the cart is 50 kg, and the loop is 30 m tall, how high does the hill have to be so that you make it through the loop without falling off? Assume there is no friction. Be exact in your calculation.
(10%) Problem 10: Modem roller coasters have vertical loops like the one shown in the figure. The radius of curvature is smaller at the top than on the sides so that the downward centripetal acceleration at the top will be greater than the acceleration due to gravity, keeping the passengers pressed firmly into their seats. Otheexpertta.com * 33% Part (a) What is the speed of the roller coaster in m/s at the top of the loop if the radius of...
(8c8p4) In the figure, a frictionless roller coaster of mass 1000 kg tops the first hill at height, h = 28 m with speed 8.55 m/s. How much work does its weight do on it from that point to point A? How much work does its weight do on it from that point to point B? How much work does its weight do on it from that point to point C? If the gravitational potential energy of the coaster-Earth system...
You have a particular spring that if you stretch it 10 cm, the potential energy in the spring is 100 Joules. What would be potential energy of this spring be if you were to stretch is twice as far? Give your answer in Joules.
I need help with problem 39 parts b,c,d
Unit 7. Work and Energy In Class Packet Name: 36. A 2.45 kg rock is dropped from the top of a 15.5 m vertical cliff a. What is the potential energy of the rock relative to the base of the cliff before it is dropped? b. What is the kinetic energy of the rock just before it hits the ground below? c. What is the velocity of the rock at a point...
A roller-coaster car of mass 1.60 x 103 kg is initially at the top of a rise at point . It then moves 30.6 m at an angle of 45.0° below the horizontal to a lower point® (a) Find both the potential energy of the system when the car is at points and and the change in potential energy as the car moves from point& to point ®, assuming y 0 at point potential energy at potential energy at change...
what fraction of your normal weight is your apparent weight as you
crest the hill? in percentage
You're driving your new sports car at 80 mph over the top of a hill that has a radius of curvature of 525 m.
A relatively small impact crater 20 kilometers in diameter could be made by a comet 2 kilometers in diameter traveling at 25 km/s (2.5×104 m/s ). a) Assume that the comet has a total mass of 4.2×1012 kilograms. What is its total kinetic energy? (Hint: The kinetic energy is equal to 12mv2, where m is the comet's mass and v is its speed. If you use mass in kilograms and velocity in m/s, the answer for kinetic energy will have...
A relatively small impact crater 20 kilometers in diameter could be made by a comet 2 kilometers in diameter traveling at 31 km/s (3.1×104 m/s ). A) Assume that the comet has a total mass of 4.2×1012 kilograms. What is its total kinetic energy? (Hint: The kinetic energy is equal to 12mv2, where m is the comet's mass and v is its speed. If you use mass in kilograms and velocity in m/s, the answer for kinetic energy will have...
You push a box of mass 16.3 kg with your car up to an icy hill slope of irregular shape to a height 4.5 m. The box has a speed 12.3 m/s when it starts up the hill, the same time that you brake. It then rises up to the top (with no friction) before immediately falling off a sheer cliff to the ground (with no drag). (a) What is the speed of the box at the top of the...