A 61-kg trampoline artist jumps upward from the top of a platform with a vertical speed of 4.2 m/s . How fast is he going as he lands on the trampoline, 2 m below? The answer is 7.5 m/s If the trampoline behaves like a spring of spring constant 5.1×104 N/m , how far does he depress it? Express your answer to two significant figures and include the appropriate units.

Q: A 6.00-kg object is attached to one end of a horizontal spring that has a negligible mass and a…

A: Given Mass of object = 6.0 kg Spring constant = 300 N/m Compression in spring given = 10 cm from the…

Q: A toy rocket is launched straight up by using a spring. The rocket is initially pressed down on the…

A: Given data:  The spring compressed by length (x) = 9 cm = 0.09 m Spring constant (k) = 1070 N/m Mass…

Q: A 5.00x105 kg subway train is brought to a stop from a speed of 0.500 m/s in 0.400 m by a large…

A: Given

Q: A 191 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 3.5 N/cm.…

A: here, mass of the block(m) = 191 g =0.191 Kg spring constant( k)= 3.5 N/cm = 3.5 * 102 N/m…

Q: A 73 kgkg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.8…

A:

Q: A 3.49-kg box placed against a horizontal spring with a force constant ofk= 228.7 N/m compresses the…

A:

Q: In the figure, a block of mass m = 3.30 kg slides from rest a distance d down a frictionless incline…

A: Mass (m) = 3.3kg   θ = 35.0 ˚ ( Angle of inclination)   Spring constant (k)= 450N/m  Compression (x)…

Q: The horizontal surface on which a block slides is frictionless. The speed of the block is 6.0 m / s…

A: Here, ∆K=-∆UsKf-Ki=Ui-Uf                               (Ui=0)Kf=12mvf2-12kxf2

Q: A 3.31-kg box placed against a horizontal spring with a force constant of k = 236 N/m compresses the…

A:

Q: a physics lab experiment, a spring clamped to the table shoots a 22 g ball horizontally. When the…

A: Mass of the ball m=22g=0.022kgCompressed length of the spring x=18cm=0.18mHorizontal distance…

Q: In a pinball machine, a horizontal spring with a spring constant of 31 N/m, is compressed by 4.0 cm…

A: Now since there is no loss of energy. The potential energy of the compressed spring will be equal to…

Q: A spring-loaded toy gun projects a 6.0 g nerf pellet horizontally. The spring constant is 8.5 N/m,…

A: Given data: The mass m=6 g The spring x=6.5 cm=6.5×10-2 m The barrel of the gun is 17 cm The spring…

Q: spring with a constant of 50.0 N/cm. The launcher is prepared by compressing the spring by 5.00 cm.…

A:

Q: 50 g ice cube can slide without friction up and down a 30º slope.  The ice cube is pressed against a…

A: Given, mass of ice cube, m=50g = 5×10-2 kg slope angle, θ=30o distance due to spring compression,…

Q: A horizontal spring attached to a wall has a force constant of k = 770 N/m. A block of mass m = 1.60…

A:

Q: A block is dropped onto a spring with k = 34 N////m. The block has a speed of 3.0 m/s just before it…

A:

Q: A trampolinist of mass 72 kg jumps vertically upward at a speed of 4.5 m/s from the top of a crate…

A: It is given that,

Q: A spring gun has a spring constant of 50 N/m and is compressed by 5 cm. It is used to launch a ball…

A: Given Data: The spring constant is: k=50 N/m The compressed distance is: d=5 cm=0.05 m The mass of…

Q: A spring project uses a plastic ball. (a) With what speed does the projectile leave the barrel of…

A: a). The speed of the cannon is 67.92 m/s2 b). The point at which the ball has maximum speed is…

Q: A 5.8 × 105 kg train is brought to a stop from a speed of 0.85 m/s in 0.57 m by a large spring…

A: If the spring gets compressed by a distance of ‘x’ and its force constant is k, its elastic…

Q: A 356 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 1.7 N/cm.…

A:

Q: A horizontal spring with spring constant 290 N/m is compressed by 15 cm and then used to launch a…

A: The spring constant k=290 N/m×1 kg/s21 N/m=290 kg/s2. The compressed horizontal distance x=15…

Q: A block of mass m = 12.0 kg is pressed against a spring of spring constant k = 300 N/m, compressing…

A: Calculate the potential energy stored in the compressed spring.The potential energy stored in a…

Q: block of mass m=6.23 kg is attached to a spring that is resting on a horizontal, frictionless table.…

A: According to Hook's law F = -k x So slope of F vs x graph represent (-k).

Q: A 8 kg box with spring constant of k = 200 N/m compresses a horizontal spring by 2.5 m beyond its…

A:

Q: When a m = 12 kg mass is on a frictionless incline of 30 degrees and takes 270 N to compress a…

A:

Q: A block of mass m = 3.5 kg slides on a horizontal rough surface head on into a spring of spring…

A: total displacement of block = 1.091m initial velocity vi= 4.47m/s final velocity vf = 0 suppose…

Q: Problem 2. A 100-g toy car is propelled by a compressed spring that starts it moving. The car…

A: By applying the conservation of energy we get the final speed of car is  V = 0.687 m/s

Q: A 3.0 kg block slides with a speed of 2.3 m/s on a frictionless horizontal surface until it…

A: Given data: Mass of the block is, m= 3 kg The speed of the block is, v = 2.3 m/s The block…

Q: Two blocks with masses 0.342 kg (A) and 0.719 kg (B) sit on a frictionless surface. Between them is…

A: using conservation of momentum 0 = 0.342 v + 0.719V 2.1V = - v ...(1)where V is the final speed of B…

Q: A horizontal spring with spring constant 85 N/m extends outward from a wall just above floor level.…

A: According to the conservation of energy, 12mv2=12kx2mv2=kx2v2=kx2mv=kx2m

Q: A large toy car is pushed horizontally by a spring, and the spring has a spring constant of 135 N/m.…

A:

Q: How much was the spring compressed initially?

A: Answer is 0.69 m Explanation is in next step.