Help please Conservation of Energy WS 1. Find the speed of a rock which is thrown...
A rock thrown with speed 6.00 m/s and launch angle 30.0 ∘ (above the horizontal) travels a horizontal distance of d = 16.5 m before hitting the ground. From what height was the rock thrown? Use the value g = 9.800 m/s2 for the free-fall acceleration. Find the height yi from which the rock was launched.
Pedro and Joanna decide to try a problem. A baseball is thrown from the top of a tall building with an initial velocity of 10 m/s from a height of h = 11 m above the ground. Find its speed when it reaches the ground if its launch angle is - 390. v- m/s Find its speed if it is launched horizontally. m/s
please help with b and c Worksheet #11 - Conservation of Energy 1. On worksheet #9, you found that when a roller coaster went upside down at the top of a loop with radius 8.0 m, a speed of 11.2 m/s was required to make the coaster feel safe. v=11.2 m/s O r=8m part b part a 1550 part a a) Assuming that air resistance and friction are negligible, what speed will the roller coaster have when it is right-side...
I need help with problem 39 parts b,c,d Unit 7. Work and Energy In Class Packet Name: 36. A 2.45 kg rock is dropped from the top of a 15.5 m vertical cliff a. What is the potential energy of the rock relative to the base of the cliff before it is dropped? b. What is the kinetic energy of the rock just before it hits the ground below? c. What is the velocity of the rock at a point...
Answer in units of m/s. Fo tic av 012 10.0 points An object is thrown vertically up and attains an upward velocity of 50 m/s when it reaches one fourth of its maximum height above its launch point. What was the initial speed of the object? The acceleration of gravity is 9.8 m/s. Answer in units of m/s 013 10.0 points A rock is thrown downward from an unknown height above the ground with an initial speed of 13 m/s....
a small rock is thrown with a speed of 20m/s and at an angle of 37 degrees above the horizontal from the roof of a tall building. the rock strikes the grounda distance of 80 m from the base of the building. air resistance can be neglected a)what is the height of the building b)what is the speed of the rock just before it strikes the ground? please show the kinematic equations used
1. A rock thrown horizontally with an initial speed of 8.0 m/s from the top of a tall building lands 24 m from the base of the building. How tall is the building? Ans: 44m
Question 3 1 pts A rock is thrown upward from the edge of a cliff that is 20 m high. The object rises 15 m and then falls to the ground. If the positive direction of the x is up, what is the rock's displacement? O 20 m 0-15 m -20 m O 55 m Question 4 1 pts A 4.4-kg mass is falling starting from rest at a height of 22 m. How much time does it take for...
A rock is thrown horizontally with a speed of 20 m/s from a vertical cliff of height 25 m. What is the velocity (magnitude and direction counterclockwise from the +x-axis, which is the initial horizontal direction in which the rock was thrown) of the rock just before it hits the ground? Magnitude - Direction - degrees
A 4,500-kg roller coaster cart has a speed of 4.76 m/sm/s when it reaches its first peak at a 99.0 mm height from the ground level. After descending, it climbs up the second hill which is 84.2 mm above the ground level. How fast is the roller coaster cart at the top of the second hill? Assume there is no friction with the rails and no air resistance during the cart's motion.