A child of mass 30.0 kg begins from rest and slides down a waterslide without friction, then launches into a pool. What is her speed at pt. 2 assuming the height of this point is 0.9 above the ground? pt. 1 2.0 m pt. 2 pt. 5 h pt. 3 0.8 m pt. 4 0.4 m Apt. 6

4. A 12 N object is attached vertically by a string to a frictionless car that runs along a level track. The car with mass m kg covers a distance of 1.25 m in 5.0 s after it starts from rest. Find the final speed of the car. A. 1.6 m/s B. 2.8 m/s C. 3.6 m/s D. 4.8 m/s   please show complete solution

An older model car accelerates from rest to speed v in 10.0 sec. A newer, more powerful sports car accelerates from rest to 2v in the same time period. What is the ratio of the power of the newer car to that of the older car?

A 600g object is thrown from a 2.2m high block (labeled A). Afterwards, it lands on a 1.4m high block (labeled B) with a velocity of 6.2 m/s. What was the objects' velocity when it left the first block? Vo A Vi B 2.2m 1.4m

Current Attempt in Progress Redesigning a track. The figure below shows a small block that is released on a slope, which then slides through a valley and up onto a plateau and then through a distance d = 2.03 m in a certain time At1. The whole track is frictionless, and the height difference Ah = h₁ - h2 between the release point and the plateau is 2.41 m. You want to decrease the time through d by 0.0500 s. What should the value of Ah then be? M ho Number eTextbook and Media Units

A 60.0 kg skier with an initial speed of 15 m/s coasts up a 2.50 m high rise as shown in the figure. a. Find her final speed right at the top, in meters per second, given that the coefficient of friction between her skis and the snow is 0.36.

50. A glider with mass m = 0.200 kg sits on a frictionless, horizontal air track, connected to a spring with force constant k = 5.00 N/m. You pull on the glider, stretching the spring 0.100 m, and release it from rest. The glider moves back toward its equilibrium position (x = 0). What is its x-velocity when x = 0.080 m?   ans - 0.30 m/s

A sled and a rider together have a combined mass of 87 kg. They slide from rest down a frictionless hill elevated at 0=30° for a distance d 45 m to reach the bottom. Find the speed at the bottom of the hill. (g 10 m/s²) %3D A. 20 m/s B. 15 m/s C. 21.2 m/s D. 18.7 m/s 1. E. 30 m/s OB 00 O O

Gayle runs at a speed of 3.20 m/s and dives on a sled, initially at rest on the top of a frictionless snow-covered hill. After she has descended a vertical distance of 5.00 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. What is their speed at the bottom of the hill if the total vertical drop is med ocum 15.0 m? Gayle's mass is 49.5 kg, the sled has a mass of 5.45 kg and her brother has a mass of 30.0 kg. m/s Need Help? Read It gy

Timmy is on the high dive (h=10m) at a local pool. Assuming Timmys mass is 65kg. a. What is his speed halfway down to the water? b. What is his speed instant he hits the water?