Problem 4 A child on a sled slides (starting from rest) down an icy slope that makes an angle of 15 with the horizontal. After sliding 20 m down the slope, the child enters a flat, slushy region, where she slides for 2.0s with a constant negative acceleration of -1.5 m/s with respect to her direction of motion. She then slides up another icy slope that makes a 20 angle with the horizontal. (a) How fast was the child going...
A child slides down a snow‑covered slope on a sled. At the top of the slope, her mother gives her a push to start her off with a speed of 0.70 m/s. The frictional force acting on the sled is one‑fifth of the combined weight of the child and the sled. If she travels for a distance of 24.5 m and her speed at the bottom is 4.25 m/s, calculate the angle that the slope makes with the horizontal.
Starting from rest, a 30.6 kg child rides a 7.75 kg sled down a frictionless ski slope. At the bottom of the hill, her speed is 6.0 m/s . If the slope makes an angle of 13.3° with respect to the horizontal, how far along the hill did she slide on her sled? Child on a sled sliding down a slope from right to left. distance= __________
Starting from rest, a 28.6 kg child rides a 8.75 kg sled down a frictionless ski slope. At the bottom of the hill, her speed is 7.2 m/s . If the slope makes an angle of 14.5° with respect to the horizontal, how far along the hill did she slide on her sled?
3. A child rides a sled down a 10-m-long slope inclined at a 30°-angle above the horizontal. Right at the bottom of the hill the child collides with a snowman. The collision brings the sled to a rapid due to gravity of an object on a surface inclined by an angle0 above the horizontal is g sin θ. [18 points] (a) For each of the following times, does the acceleration vector of the sled point up the hill. down the...
Starting from rest, a 29.2 kg child rides frictionless ski slope. At the bottom of the hill, her speed is 8.25 kg sled down a a 6.8 m/s. If the slope makes an angle of 15.5° with respect to the horizontal, how far along the hill did she slide on C her sled? 0.235 distance Momentum and Energy 2 Based on the previous question you can conclude that if two objects of different mass have the same magnitude of momentum,...
A sled with mass 30 kg slides 40 m down a hill angled at 20 degrees to the horizontal. The coefficient of friction between the sled and the ground is 0.2. a) How much work does gravity do on the sled? b) How much work does the normal force do on the sled? c) How much work does friction do on the sled? d) What is the net work done on the sled e) if the sled begins at rest...
a 10 kg child slides down a 4 meter long slide at angle of 30 degrees to the horizontal. at the end of the slide , she is going at a speed of 2.2 m/s. how much energy is converted to internal energy by friction during this slide? (answer in joules) Please explain how to solve this so that I could learn for the future. Thank you!!
A child whose weight is 267 N slides down a 6.10 m long slide that makes an angle of 20.0° with the horizontal. The coefficient of kinetic friction between the slide and the child is 0.100. If the child starts at the top with a speed of 0.457 m/s, what is the child's speed at the bottom? (Ignore air resistance)
Q8. G) A child rolls a ball on a level floor 3.5 m to another child. If the ball makes 12.0 revolutions, what is its diameter? (ii) A grinding wheel 0.35 m in diameter rotates at 2200 rpm. Calculate its angular velocity in rad s (in)What are (a) the linear speed and (b) the acceleration of a point on the edge of the grinding F, Volu wheel? 09. 2.998 x A child in a boat throws a 5.30-kg package out...