7) A bob attached to a cord is moved to the right where its vertical position is 1.05 cm above the equilibrium position and is then given an initial speed of 0.6 m/s. What are the vałues of the maximum speed and maximum height reached by the bob? (Take g = 9.8 m/s*)

Q: If the original height of the rock is y1 = h = 3.0 m, calculate the rock’s speed when it has fallen…

A: solution is given as

Q: A 110 kg man is skiing across level ground at a speed of 9.5 m/s when he comes to the small slope…

A:

Q: An athlete jumping vertically on a trampoline leaves the surface with a velocity of 8.5m/s upward.…

A:

Q: A pendulum at rest has its bob at zero height from the ground. If the bob is pulled back until it…

A:

Q: 10. A roller coaster reaches the top of the steepest hill with a speed of 5.40 km/h. It then…

A: 10)Write the expression for the difference between the force of gravity and frictional force will be…

Q: In the energy lab, a student through the ball straight up with initial speed V= 2 m/s from the…

A: Kinetic energy of a body with mass m and moving with velocity v is given by 12mv2Potential energy of…

Q: A 2.1 × 103 -kg car starts from rest at the top of a 5.0-m-long driveway that is inclined at 20°…

A: Given data: Mass of car, m = 2.1 × 103 kg Length of driveway, L = 5 m  angle of inclination, θ = 20°…

Q: Calculate the speed of a 2.1 x 10^3-kg car at the bottom of a driveway if it starts from rest at the…

A: The mass of the car is M=2.1×103 kg The length of the driveway is D=5.0 m The angle of inclination…

Q: 6. A spring gun has a constant of K= 650N/m. It is compressed a distance x 0.04m and a ball of mass…

A:

Q: 7) A bob attached to a cord is moved to the right where its vertical position is 1.05 cm above the…

A: Concept

Q: A bob attached to a cord is moved to the right where its vertical position is 1.05 cm above the…

A:

Q: Suppose a girl gets a 0.25 m length of string where she attaches one end to the ceiling and the…

A:

Q: A ball is dropped from a height 16 m above the ground at t=0.0. Each time it bounces from the…

A: Solution: Given that h = 16 m rebound speed 60 % of impact speed

Q: A 65.0 kg skier with an initial speed of 13.0 m/s coasts up a 2.50 m high rise as shown in the…

A: The mass of the skier, m=65.0 kg The angle of elevation, θ=35° The initial speed of the skier,…

Q: If the original height of the rock is y, = h = 3.0 m, calculate the rock's speed when it has fallen…

A: Given data: Initial speed of the rock, u=0    y1=3.0 m  y2=1.0 m

Q: 2. Identify whether the following is a scalar quantity or a vector quantiy a. 800J of work b. 120 N…

A: Scalar quantities are those quantities which only need magnitude to define themselves completely and…

Q: 3. A 3.2 kg box on an incline plane is push from the top and travels down with the initial speed of…

A: Given Mass m = 3.2 kg Initial velocity u = 9.8 m/s Length of inclined = 5 m Angle of inclination =…

Q: If he leaves the ramp with a speed of 29.5 m/s and has a speed of 27.7 m/s at the top of his…

A: Useful formula: Kinetic energy of an object with mass M & speed v is Ek=12Mv2       ...(1)…

Q: A block of mass m on a horizontal frictionless surface is pushed against a spring. If the spring is…

A: Given: The mass of block is m. The spring is compressed at a distance of x. The expression for…

Q: Mark is a 510-N daredevil who loves to perform stunts. He wants to dive from a cliff by running…

A:

Q: Final Y = (3 m)sin 37° y= 15 ms X-0 K; + , + U + W - K, + g,* y + AEtbem Initial m= 60 kg X- 3,0 m…

A: Mass = 60 kg  Initial compression = 3 m  Final launch speed = 15 m/s

Q: 1). what is the speed of a 14 kN body at rest then falling from a height of 238 m.

A: As per guidelines only first question is solved here. 14 kN body at rest Height, h = 238 m

Q: 11.2 A burglar runs across a rooftop (being chased by security guards, or maybe the irate…

A:

Q: In 1939, Emanuel Zacchini took his human-cannonball act to an extreme: After being shot from a…

A: The initial velocity,

Q: A block of mass 2.0 kg is travelling left at a speed of 4.0 m/s when it hits a spring placed…

A:

Q: . (II) The Lunar Module could make a safe landing if itsvertical velocity at impact is 3.0 m/s or…

A: Given: Velocity of impact = 3 m/s

Q: 2. A 6.0 kg mass is thrown vertically upward with an initial speed of 10.5 meters per second. What…

A:

Q: 4. A 6 kg block is placed at rest at a vertical height of 30 meters on a plane inclined at 37° with…

A:

Q: Spring is compressed 1.1 cm is found to launch a ball 8.0 m vertically in the air. If instead we…

A: We can solve this problem using conservation of energy the energy intial store in elastic potential…

Q: A compressed spring fires a ball of mass (m) directly upwards. If the mass of the ball and the…

A: Solution : The potential energy of the spring is given by                         P.E =12kx2 where k…

Q: *46. |A pendulum consists of a small object hanging from the ceiling at the end of a string of…

A: The initial kinetic energy is given by, KEi=12mv2 The initial potential energy is, PEi=-mgl In the…

Q: A bob attached to a cord is moved to the right where its vertical position is 1.05 cm above the…

A: using energy conservation between initial and final position (Where speed is maximum) of pendulum…

Q: The ball launcher in a pinball machine has a spring that has a force constant of 50.0 N/m. The…

A:

Q: 17-A child with a mass of 20 kg comes off the platform with a vertical velocity of 2 m/s. jumps on…

A:

Q: A.2.1x 10-kg.car starts from rest at the top of a 5.8-m-long driveway that is inclined at 15° with…

A: Given data: Mass of car (m) = 2.1×103 kg Displacement along driveway (d) = 5.8 m Angle with…

Q: Suppose I need to  toss an object of mass 5.2 up onto a shelf 5.94 meters above where my hands can…

A: The third equation of motion is  v2 = u2 + 2 a s  where, u is the initial speed, v is the final…

Q: 1 Rank the following velocities according to the kinetic energy a particle will have with each…

A:

Q: When the speed of an object is quadrupled, its kinetic energy is    A. doubled   B. increased by…

A: Given: The speed of the object becomes quadrupled.

Q: 10 An object falls freely from rest near the surface of Earth. What is the speed of the object when…

A: Write the kinematic expression for final velocity

Q: At the Earth's surface, a projectile is launched straight up at a speed of 7.5 km/s. To what height…

A: Given value--- initial speed = 7.5 km/s. We have to find--- height?

Q: A ball is dropped from a height 30 m above the ground at t=0.0. Each time it bounces from the…

A:

Q: 33 - Which or which of the following is true about kinetic energy? I) Kinetic energy is a type of…

A: Let us assume that an object has a mass = m Let the speed of the object at any instant = v Let…

Q: A spring with spring constant of 100 N/m launches a 20 g ball verticallyn into the air. If the ball…

A: Given : Spring constant, k = 100 N/m Mass of ball, m = 20 g Height the ball reaching, h = 20 m

Q: A 97.49-kg skier with an initial speed of vi=34.93 m/s coasts up a H=11.75-m-high risel.  The slope…

A: Given,Mass of the skier, m = 97.49 kginitial speed, vi = 34.93 m/sheight, H = 11.75 mslope of the…