A physics student with mass 51kg slides in the snow (see figure). Find the velocity for each points @ A, B, C, D and E. ... B D 100 m 60 m 30 m E
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- 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 31 m/s. A) Assuming that air resistance can be ignored, find the initial speed of the rock. Express your answer using two significant figures. B) Find the greatest height of the rock as measured from the base of the cliff. Express your answer using two significant figures.A physics student with mass 51kg slides in the snow (see figure). Find the velocity for each points @ A, B, C, D and E. D 100 m 60 m 30 m B.help solve two part question A. A roller coaster begins at rest at the top of a 30 m hill. Find the velocity at a point 5 m above the bottom of the hill. B. A roller coaster begins at 6 m/s at the top of a 39 m hill. Find the velocity at a point 4 m above the bottom of the hill.
- The driver of a car slams on the brakes, causing the car to slow down at a rate of 26.0ft/s? as the car skids 239ft to a stop. How long does the car take to stop? What was the car's initial speed? ft/s vA PHYS 1510 student decides to take revenge on the awful Canadian Goose that has been chasing it all over the campus. The student ambushed the goose, jumping off a short wall to startle it. The student weighs 49.2kg. The wall is 1.47m tall. Initial speed was 1.767 m/s because the student pushed off when jumping. What was the student's speed when they reached the ground? (Include SI units)nt. 8. A cannonball is shot from a cannon at 45-degree angle: a. In Galeleo's Kinetic equations, which variable must be constant for the equations to give the correct results? b. If the x axis represents the horizonal axis, what is the value of ax? C. Assuming there was no air resistance, would final velocity of the cannonball be (1) greater than initial velocity, (2) less than initial velocity, or (3) the same as initial velocity when is at its maximum height? d. Assuming there was air resistance, would final velocity of the cannonball be (1) greater than initial velocity, (2) less than initial velocity, or (3) the same as initial velocity when is at its maximum height?
- A man on a motorcycle plans to make a jump as shown in the figure. h If he leaves the ramp with a speed of 31.5 m/s and has a speed of 29.6 m/s at the top of his trajectory, determine his maximum height (h) (in m) above the end of the ramp. Ignore friction and air resistance. Additional Materials O ReadingA paratrooper weighing 180 pounds (including equipment) falls vertically downward from an altitude of 5000 feet and open the parachute after 10 seconds of freefall. Assume that the resistance force of the air is 0.75v when the parachute is closed and 12v when the parachute is open, where the velocity v it is measured in feet / sec. to. a. Find the speed of the skydiver when open the parachute b. find the distance of fall before it opens the parachute. c. What is the limiting velocity vL after it is open the parachute? d. Determine how long the skydiver is in the air after the parachute opens. and. Plot the graph of velocity versus time from the beginning of the fall until the skydiver arrives downA block projected up a frictionless inclined plane with a speed of vo. The angle of incline θ. A) How far up the plane has it go? B.) How long does it take to get there? C.) What is its speed when it gets back to the bottom? Find the numerical answers for θ = 350 and vo = 8.2 ft/s.
- A 3460.05 kg car crashed to a 523.9 lbs motorcycle which is at rest, throwing it to accelerate at 8.75 m/s2. If the car was pushed back with a distance of 26.97 m, how much farther is the motorcycle from the crash site? What is the final velocity of the car upon being pushed back that is caused by the crash? use 1kg=2.20lbsBlock A has a weight of 60 lb and block B has a weight of 10 lb. Neglect friction and the mass of the cord and pulleys. (Figure 1) Figure Part A Determine the speed of block A after it moves 4.7 ft down the plane, starting from rest. Express your answer to three significant figures and include the appropriate units. V= Value UnitsWhich statement is true? A As an object falls freely, its speed decreases. B As an object falls freely, its speed increases. C As an object falls freely, its speed remains constant. D As an object falls freely, its speed increases and then decreases. et C R p rperty of ha Common Jehgaty Re Tet p 214300 Canratd nea1 A student starts walking from school toward a bookstore. He walks 250 m east, then 150 m north, and finally 100 m west.