Calculate how much labor you and a buddy put in when each of you pushes a vehicle that has run out of gas. Assume that you and your buddy each exert a horizontal force of 200 N over a distance of 100 m.

Problem-2: An ice block floating in a river has a displacement given by, d = 5i - 2j (meters) The block is pushed by a force F = 2i + 2j (Newton) If the initial speed of the block is 0, find its final kinetic energy.

Listen> Read the scenario. A cyclist is riding his bike at a constant speed of 5 m/s, and experiences a frictional force between the bike and sidewalk of 100 N. The cyclist then changes his speed to 10 m/s. What effect does this increase in speed have on the frictional force between the bike and sidewalk? The frictional force doubles because when speed increases frictional force also increases. The frictional force between the bike and sidewalk stays the same because speed does not affect frictional force. The frictional force becomes half of what it was because when speed increases, frictional force decreases. The frictional force increases, but does not double because although friction increases with increasing speed, it does not increase as fast. Next >

A 675 kg car is coasting at 60.0 km/h.a) How large a force (magnitude) is required to stop the car in 6.00 seconds?b) Based on the conservation of energy, determine how many meters the car will travelduring that same short period of time.

Subject :- Physics

explain how the principle of conservation of energy applies to a man sliding from rest down a vertical pole, if there is a constant force of friction acting on him.

5) A block of mass, m = 10.0 kg, is sliding along a frictionless horizontal surface with an initial velocity of 8.00 m/s when it encounters a frictionless ramp inclined at an angle of 0=30.0° above the horizontal. Calculate the speed of the block when it reaches a vertical height of 1.4 meters. [You may use g=10.0 m/s and choose the closest answer] A) 3.0 m/s B) 4.0 m/s 5.0 m/s D) 6.0 m/s E) 7.0 m/s m 0 m = 10kg

Current Attempt in Progress A block is projected up a frictionless inclined plane with initial speed vo= 3.16 m/s. The angle of incline is 0 = 35.0°. (a) How far up the plane does it go? (b) How long does it take to get there? (c) What is its speed when it gets back to the bottom? (a) Number i (b) Number i (c) Number i Units Units Units

A 4.25 kg block is projected at 5.40 m/s up a plane that is inclined at 30.0° with the horizontal. The block slides some distance up the incline, stops turns around and slides back down to the bottom. When it reaches the bottom of the incline again, it is traveling with a speed of 3.80 m/s. If the coefficient of kinetic friction between the block and the plane is 0.500, how far up the incline did the block slide?

Use conservation of energy to solve both parts of the following problem (initial kinetic energy + initial gravitational potential energy = final kinetic energy + final gravitational potential energy): A skydiver with a mass of 80.0 kg steps out of a hot-air balloon holding at an altitude of 1.00 km and opens their parachute at an altitude of 200. m. While they’re in free-fall, there is a total drag force of 50.0 N on them. Once the parachute has opened, there is a total drag force of 3.60 kN on them. (y = 0 at 200. m) (a) How fast is the skydiver going when they open their parachute? (b) How fast will they be going once they touch down?