What is the speed and direction of the child? How long does it take the child to make it to the edge of the pond? How long does it take the dog to make it to the edge of the pond?
Q: An airplane flies in a vertical, semicircular arc in order to simulate “weightlessness” for its…
A: for weightlessness the forces must balance, i.e the centripetal force must be balanced by the weight…
Q: Classes are canceled due to snow, so you take advantage of the extra time to conduct some physics…
A:
Q: A 54.0-g Super Ball traveling at 27.5 m/s bounces off a brick wall and rebounds at 18.0 m/s. A…
A: mass of super ball (m) = 54 g = 0.054 kg Initial velocity (u) = 27.5 msFinal velocity (v) = -18…
Q: A pulley and string arrangement is used to connect two objects A and B as shown in the diagram…
A:
Q: A bath toy is floating stationary in water such that half of the toy is above water and half of the…
A:
Q: skydiver drops d1 = 475 meters in t1 = 9.5 s before opening his parachute. After the chute opens, he…
A:
Q: A small coin, initially at rest, begins falling. If the clock starts when the coin begins to fall,…
A:
Q: A girl on a bicycle takes 15.4 s to ride half way around a circular track of radius 19.0 m (see the…
A: a)The average speed is,
Q: You throw a baseball directly upward at time t = 0 at an initial speed of 14.1 m/s. What is the…
A:
Q: Penn and Teller decided to do a magic trick involving a coin and a baseball. Penn throws the coin…
A:
Q: While playing sock baseball in the living room, a child swings a pair of socks attached to the end…
A:
Q: While playing sock baseball in the living room, a child swings a pair of socks attached to the end…
A: Consider the speed of the socks be v, and the length of the string, that is the radius of the…
Q: Spring Gun: A spring gun can launch a projectile with a speed of 12.21 m/s 1.8m high, and the…
A:
Q: rts move together along a horizontal frictionless track. A spring coiled in the two carts is…
A: We are given velocity vs time graph. We are given the graph before collision and after collision. We…
Q: Two physics students are sitting on a spinning merry-go-round. One student measures the time it…
A: Let the time taken to complete one rotation = T Let the speed = v Let the radius of merry go round…
Q: You walk in the direction of the unit vector (1, 0, 0) a distance of 24 m at a constant speed of 3.0…
A:
Q: After a big snowfall, you take your favorite rocket‑powered sled out to a wide field. The field is…
A: Given data: Initial velocity (u) = 0 m/s Distance (d) = 209 m Acceleration (a) = 3.25 m/s2…
Q: A rocket is launched upward. The height of the rocket was 68 ft at the end of the thrust portion of…
A:
Q: At a concert, a rockstar with entirely too much money swings their guitar at the ground. Starting…
A: This problem can be solved by using equation of motion assuming constant acceleration.
Q: You are wearing your rocket pack (m = 73 kg) that accelerates upwards at a constant 10.1 m/s. While…
A: Freefall is defined as the downward movement of the body under gravity. Acceleration of rocket=…
Q: A bowling ball weighing 71.2 N is attached to the ceiling by a 3.50 m rope. The ball is pulled to…
A:
Q: Suppose the time between the apparatus leaving your hand and landing on the ground was measured to…
A: Given: Time between apparatus leaving hand and touching ground, t = 4.80 s Acceleration due to…
Q: A hammer with mass m = 0.456 kg moves horizontally at a velocity of v = 6.5 m/s when it hits a nail…
A: Mass of the hammer is m= 0.456 kginitial velocity u= 6.5 m/sfinal velocity v= 0 m/s ( since the…
Q: While playing sock baseball in the living room, a child swings a pair of socks attached to the end…
A: The expression for the centripetal acceleration in a circular motion is: Substitute the known…
Q: A car is traveling with a constant speed along a road that has a form of an equilateral triangle.…
A:
Q: acceleration
A:
Q: A student begins at rest and then walks north at a speed of v₁ = 0.85 m/s. The student then turns…
A:
Q: A ball is tied to the end of a string and swung around overhead. The 0.05 kg ball makes a complete…
A:
Q: Using a waste factor of 8 percent, determine the number of cubic yards of concrete needed to pour…
A:
Q: The Cassini spacecraft traveled with a companion module, Huygens, that split off so that it could…
A: Given: u = 0 m/s a = 1.352 m/s2 h = 1.4 m
Q: Buster wants to demonstrate constantly-accelerated motion by letting a frictionless ice cube slide…
A: Concept used: A component of gravity acts horizontal to incline and forces ice-cube down the…
Q: A bicycle travels 8.30 km due east in 0.370 h, then 14.40 km at 15.0° east of north in 0.230 h, and…
A: Consider the vector diagram for the motion of the bicycle as follows.
Q: Falcons are excellent fliers that can reach very high speeds by diving nearly straight down. To pull…
A:
Q: A person is standing on top of a building. While standing at the edge of the building the person…
A:
Q: The Giant Ferris wheel in vienna has radius R = 30 m. Assume that at the time t = t0 , a person is…
A:
A 25 kg child sits in the middle of a frozen, frictionless pond of radius 15 m with their 11 kg dog. In order to make it off the pond, the child pushes off of the dog. The dog then travels at a velocity of 14 m/s. What is the speed and direction of the child? How long does it take the child to make it to the edge of the pond? How long does it take the dog to make it to the edge of the pond?
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
- please answer section 2A tennis ball with a speed of 27.8 m per s is moving perpendicular to a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 20.016 m per s. If the ball is in contact with the wall for 0.0133 s, what is the average acceleration of the ball while it is in contact with the wall? Take toward the wall to be the positive direction. Answer in units of m per s2.Figure out the acceleration due to gravity ( g ) on various hypothetical alien planets. On planet #2, you launch a projectile straight up from the ground at a speed of 27.9 m/s. The projectile reaches a maximum height of 75.5 m before falling back to the ground. What is the value of g for planet #2?
- In each of the six figures below, a cart (which has a motor and brakes) is traveling either up or down an incline at a constant velocity. All carts are identical except for mass. Inclines and velocities vary and are shown in each figure. Rank the acceleration of these carts from greatest to least. A 40 cm/s B 20 cm/s C 40 cm/s 2 kg 4 kg 4 kg 25° 25° 15° D E 40 cm/s F 20 cm/s 40 cm/s 4 kg 2 kg. 2 kg 15° 25° |15° A. A = C > B =D >E = F B. A = B = C = D = E = F (but not zero) C. cannot be determined from information given D. all accelerations are zero E. none of the aboveYou are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball. The soccer ball is kicked at 50° from the edge of the building with an initial velocity of 10 m/s and lands 20 meters away from the wall of the building. Which equation will allow you to solve for the amount of time the ball is in the air? Hint: look at your givens in the x-direction. Group of answer choices A. vfx2=v0x2+2axΔx B. vfx=v0x+axt C. Δx =v0x t + ½ axt2Falcons are excellent fliers that can reach very high speeds by diving nearly straight down. To pull out of such a dive, a falcon extends its wings and flies through a circular arc that redirects its motion. The forces on the falcon that control its motion are its weight and an upward lift force—like an airplane—due to the air flowing over its wings. At the bottom of the arc, as shown, a falcon can easily achieve an acceleration of 15 m/s2. A falcon starts from rest, does a free-fall dive from a height of 30 m, and then pulls out by flying in a circular arc of radius 50 m. Which segment of the motion has a higher acceleration?A. The free-fall diveB. The circular arcC. The two accelerations are equal.
- Two bugs, Buzz and Crunchy, are siting on a spinning disk on a horizontal plane. Buzz is sitting halfway and Crunchy is sitting at the outer edge as shown. The radius of the disk is 0.80 m and the disk is rotating with an angular speed of 38 rpm. The coefficient of friction between the bugs and the disk are us = 0.80 and uk= 0.60. What is the magnitude of Buzz's acceleration, in m/s2? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. Buzz CrunchyPhysics You are on a mysterious planet with a gravitational acceleration of 2.0 m/s2. If you throw a ball straight upward with a speed of 10 m/s, how long will it take for the ball to return to where it was thrown?I am currently learning about kinematics in my physics class. For one of the questions, it asks me to solve a question that asks me to find the magnitude of acceleration. I have found answers ranging between 3 and 4, but everytime I put my answer into Webassign it is wrong. I was wondering how I would find the magnitude of acceleration given the time and distance. Thank you
- A roof worker loses his grip on his box of tools while working on a tall house. His box slides down the roof. The roof is angled at 29 degrees with the horizontal. The roof is made of a frictionless material. The box travels 5 m down the roof and then leaves the edge of it 12 m above the ground. a). Figure out the box's velocity as it leaves the house's roof? b). How far from the base of the house does the box hit the ground? c). By how much does the box clear the yard fence which is 1.8m tall and located 6.7m away from the base of the house? I TOOLS 5m 29° 12 m 1.8m 6-7m ENGLYou and a friend ride your bikes to a restaurant across town. Both of you start at the same instant from your house, you riding 10 m/s and your friend riding 12 m/s. During the trip your friend has a flat tire and that takes him 8 minutes to fix. He then continues the trip at the same speed of 12 m/s. If the distance to the restaurant is 10 km, who gets there first?A catapult lunches a rock at a castle wall. The rock is lunched at a 45 degree angle with a speed of 22 m/s. the castle wall is 45 m away and is 20 m high. Does the rock make it over the wall?