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- You are playing a game and you push a cart to give it in. speed. The cart starts at the bottom (zero) of a ramp and after reaching the top of the ramp, the cart travels across a horizontal track w/ friction. The mass of the cart is 44 x 10^-3 kg. The ramp is 56 cm high. The length is 70 cm. What can you infer of the intial speed in (m/s)The weight of an object by the sea is 2800 N. What is the weight of this object at a height with gravitational acceleration of 7.2 m/s? in terms of Newton, dyn, kgf and Ibf? If the velocity of this object at this height equals 22 m/s, what is the Kinetic Energy in terms of N.m, dyn.cm, kgf.m and Ibf.ft?What is his speed (in m/s) when he reaches the upper level if a 60 N frictional force acts on the skis?
- Fill in the data table below for a projectile that is fired off of a building 28° ABOVE the horizontal with a speed of 36 m/s. Take up to be positive. Ignore air drag. t (s) Vx (m/s) .ax . (m/s²) Vy (m/s) ay (m/s²) 31.786 0 0 16.900 -9.8 31.786 0 1 -16.900 X -9.8 31.786 0 2 -16.900 X -9.8 31.786 0 3 -16.900 X -9.8 31.786 0 4 -16.900 X -9.8Does the International Space Station have gravitational PE? KE? Explain.A roller-coaster vehicle has a mass of 490 kg when fully loaded with passengers (see figure). B) 15 mi 10 m A (a) If the vehicle has a speed of 21.0 m/s at point A, what is the force of the track on the vehicle at this point? (b) What is the maximum speed the vehicle can have at point B in order for gravity to hold it on the track? m/s Need Help? Read It
- A 54.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe," a track that is one-quarter of a circle with a radius of 3.70 m. What speed does he need at the bottom?Neglecting air resistance, with what initial speed would you have to throw a ball into the air so that it reaches a maximum height of 1 Earth radius above the surface of the Earth? G = 6.67 x 10-11 m3 kg-1 s2 REarth = 6.37 × 106 m %3D MEarth = 5.97 × 1024 kg%20tiene%20una%20masa%20de%20100%20kg%20y%20se%20encuentra%20a%20u... INGLÉS ESPAÑOL FRANCÉS A satellite of the Earth has a mass of 100 kg and is at a height of 2.0x10 3 km above the earth's surface. Determine the gravitational potential energy of the Earth-satellite system. Enviar com Tardado
- A 17.5-kg block is dragged over a rough, horizontal surface by a 75-N force acting at 21° above the horizontal. The block is displaced 5.7 m, and the coefficient of kinetic friction is 0.150. (a) Find the work done on the block by the 75-N force. (b) Find the work done on the block by the normal force. (c) Find the work done on the block by the gravitational force. (d) What is the increase in internal energy of the block-surface system due to friction? (e) Find the total change in the block's kinetic energy. .....In the figure. The force F is: m = 60.0 kg P CG Fp 0.90 m 1.50 m WA 1000 kg object is rising. Its speed is increasing at 3 m / s2. The force on the object is:
