what is the maximum height that he reaches?
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- A 3kg block slides along a floor with coefficient of kinetic friction μk=0.3, initially moving at 7.0m/s. It travels for 2.0 meters, then encounters a ramp sloped upward at 40 degrees. The ramp also has a coefficient of kinetic friction μk=0.3. How fast is the block moving when it reaches the bottom of the ramp? How far up the ramp does the block slide, before momentarily coming to rest? a.) For each part of the problem, identify all the forces acting on the block, and draw a free body diagram. b.) Instead of using a Newton’s 2nd Law equation, write out the Work Energy Theorem for each part of the problem (that is the ΔK = W1 + W2 + … equation.) For both parts of the problem, find thework done by each force on the block and place them on the right-hand side of the equation. (In the ramp part, the magnitude of displacement is unknown, so just leave it as a variable.) c.) Solve for the final velocity in the first part of the problem, then solve for the displacement in the second part of…A daredevil on a motorcycle leaves the end of a ramp with a speed of 33.2 m/s as in the figure below. If his speed is 31.0 m/s when he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance. m A daredevil on a motorcyle is at the end of a ramp that is sloped up to the right. An arrow parallel to the ramp's surface is above the daredevil. A dotted-line path traces the trajectory of the daredevil. The path extends up to the right, initially parallel to the surface of the ramp, and decreases in slope until it reaches a maximum, whereupon it extends down to the right with increasing slope magnitude. The vertical distance between the maximum and the highest point of the ramp is h. A horizontal arrow points to the right above the maximum.I am having trouble with this homework problem, any help would be greatly appreciated, thank you!
- B3In the figure, a small, initially stationary block is released on a frictionless ramp at a height of 3.0 m. Hill heights along the ramp are as shown in the figure. The hills have identical circular tops, and the block does not fly off any hill. Which hill is the first the block cannot cross? What does the block do after failing to cross that hill? The normal force on the block least? * 3.5 m (4) 2.5 m 1.5 m (3) 3.0 m (2) 0.5 m O 3, Moves backwards, at the top of 1 O 3, oscillates between 2 an 3, at the bottom of 2 and 3 O 4, Moves backwards, at the top of 3 O 3, Moves backwards, at the top of 3Question 23 Two frisky otters slide down frictionless hillsides of the same height but different slopes. The slope of the hill of otter 1 is 30°, while the slope of the hill of otter 2 is 60°. If both start from rest, which otter is moving faster when she reaches the bottom of her hill? O The otter that took the shorter time is moving faster. O Otter 2 is moving faster. O The heavier otter is moving faster, no matter which hill she used. O Otter 1 is moving faster. O Both otters have the same speed at the bottom.
- Computation. A block is released from rest at the top of a 47-m long frictionless ramp inclined at 34° above the horizontal. What is the block's speed at the bottom of the ramp? v= m/s Record your numerical answer below, assuming three significant figures. Remember to include a "-" if/when necessary.* 00 A skateboarder at a skate park rides along the path shown in the following figure. If the speed of the skateboarder at point A is v = 1.5 m/s, what is her speed at point B? The skateboarder's mass is 20 kg. Assume that friction is negligible. a A. 5.5 m B. 1.8 m B. 1) List the number and associate it with a symbol. Please include unit. Symbol Number Information at point A Information at point B MacBook Pro G Search or type URL %2$ ) 4. RQuestion 10 A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff, the rock has a speed of 29 m/s. You may want to review (Pages 234 - 241). ▼ Part A Assuming that air resistance can be ignored, find the initial speed of the rock. Express your answer using two significant figures. ? vo = m/s Submit Request Answer Part B Find the greatest height of the rock as measured from the base of the cliff. Express your answer using two significant figures. ? Hmax =
- The dragster accelerates from rest down a road of length d = 400.0 m. In the absence of any friction the dragster has a constant acceleration of a = 21.1 m/s2 in the direction of motion, and its mass is m = 1175 kg. Assume the dragster is moving in the positive horizontal direction. a. Assuming there is no rolling friction, write an expression for the amount of net work done on the dragster, Wd, during the run, in terms of the given quantities. b.consider the existence of rolling friction, which causes a total resistive force with magnitude Fr on the dragster. Write an expression for the work done by this force over a distance d. c. What is an expression for the total kinetic energy of the dragster, Ed, in the presence of rolling friction after it travels a distance d. d. What is the dragster's final speed, in meters per second, assuming Fr = 1000 N?A 149-g baseball is dropped from a tree 15.0 m above the ground. Part A With what speed would it hit the ground if air resistance could be ignored? Express your answer to three significant figures and include the appropriate units. V = Part B for Part A for Part A undo for Part A redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A Submit Value Ffr = If it actually hits the ground with a speed of 7.50 m/s, what is the magnitude of the average force of air resistance exerted on it? Express your answer to three significant figures and include the appropriate units. Units Request Answer Submit for Part B for Part B undo for Part B redo for Part B reset for Part B keyboard shortcuts for Part B help for Part B Value Units Request AnswerA 02 UBC Engineering A trapeze artist of a mass of M to 01 trick. If the ropes do NO work on the artist, what is the speed just before they let go? What is their normal acceleration? 79kg is attempting a new trick on a rope of l 70° and then rope A is cut. The artist holds on until when 02 = 15° then lets go for the next 15m. They are lifted Neglect size and air resistance