A 0.09 kg tennis ball traveling at 15 m/s rebounds in the opposite direction at 20 m/s after being hit by the racket. During the 0.032 sec period of contact the force time. (Ft) curve is parabola. Calculate the maximum value of the force exerted by the racket on the ball.

Q: the vertical ground reaction force from a force plate during the contact phase for a 55 kg runner.…

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Q: A ball is thrown vertically up with a velocity of 50 m /s at the edge of a 100-m cliff. Calculate…

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Q: 3. A mass m (2.0 kg) is attached to a horizontal spring of spring constant k (25 N/m) which is held…

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Q: A 10-kg body is pulled upward with an acceleration of 0.40 m/s. Calculate the tension in the cord.

A: Mass (m) = 10 kg Acceleration (a) = 0.4 ms2

Q: A football player hits a 180 g ball moving horizontally to the left with a speed of 6 m/s, as shown…

A: Given Data⇒ Mass of ball (m)=180 gm Since 1 kg=1000 gm Mass of ball (m)=0.180 gm speed of ball…

Q: Five passenger (each with a mass of 100kg) are travelling on a car (approximate mass is 1000kg) at a…

A: Given data Each passenger mass = 100 kg Mass of car = 1000 kg Velocity = 72 kph

Q: 4. The Block with a mass of 4-Kg is hung with a spring. The stiffness constant of the spring K = 10…

A: Given data: The force applied, F=100 N. The mass of the block, m = 4 kg. The spring constant, k=10…

Q: In the system shown, a spring is compressed and pushes a mass of 50Kg down the path shown with two…

A: To obtain the required compression of the spring, we must use the concept of energy balance. The…

Q: a car has a mass of 1234kg and center of mass G. Determine the acceleration of the rear is "driving"…

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Q: A truck of mass 6 tonnes was moving with a velocity of 145 km/hr. The brakes were applied to bring…

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Q: 3. A box of mass m=15 kg at the packaging section of a factory comes to the top of a ramp (0=37°)…

A: Given data: The mass of the box is m=15 kg The inclination angle of the ramp is θ=37° The…

Q: block with some mass m is connected to a string that is attached to the ceiling. The block on the…

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Q: Q4/ Assuming frictionless motion, compute the force exerted by the arm OA on the cylinder B when 0=…

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Q: Given a small disk (4-Kg) sliding on top of a smooth table which is connected to an elastic cord…

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Q: The piston of an internal-combustion engine is connected to its connecting rod with a “wrist pin.”…

A: Given   Mass, m = 0.5 kg Acceleration, a = 2500 m/s2 Find   Force on the wrist pin, F

Q: The system in the figure is released from a standstill. Using the conservation of energy, Find the…

A: The free-body diagram of the system is shown as the velocity at the starting point will be zero and…

Q: The cart in figure 1 slides in the horizontal plane with an acceleration of          4 m / s². Body…

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Q: A 200-lb block is sliding along a horizontal plane at 4 ft/s when a force P is applied on it as…

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Q: A 200-lb block is sliding along a horizontal plane at 4 ft/s when a force P is applied on it as…

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Q: take m and k as ; m= 0.18 kg,   k = 128 N/m

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Q: A car of mass 500 kg is moving with a velocity of 10 m/s and strikes with a wall. If the striking…

A: Given data  mass of car (m)  = 500 kg  velocity of car (v) = 10 m/s striking time (∆t) = 0.1 s To…

Q: A father plays with his little son on a frozen lake. They stood facing each other, put their hands…

A: Given     Acceleration of father, a = 0.8 m/s2               Mass of father, m = 4 M  Where,     M…

Q: 3. A box of mass m=15 kg at the packaging section of a factory comes to the top of a ramp (0=37°)…

A: Solution: Weight of the box W=mg=15×9.81=147.15N Component of weight normal to the surface…

Q: A force F exerts on a body which changes its velocity from vi to vf and body begins to move in a…

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Q: A small block of mass m slides frictionlessly in the given orbit. Calculate the magnitude of the…

A: According to the given data  m=1kg g=10m/s2 We need to find Resultant forces the block at C

Q: pring With U? Consider the spring-mass system on a frictionless horizontal surface as shown.…

A: Option b is correct Because  when spring has  compress there is work done on system while it have…

Q: A truck of mass 3 tonnes was moving with a velocity of 140 km/hr. The brakes were applied to bring…

A: Given data: -  The mass of the truck is m = 3 tonnes. The velocity of the truck is u = 140 km/hr.…

Q: A train has a mass of 455 tonne is going up an incline of 1 in 168. The tractive resistance of the…

A: Given data: Mass of the train = 455 tonne Tractive resistance of the train = 47.3 N/tonne Initial…

Q: l0=0.18 m   and  the collar = 1.28 kg Note : Please just solve first page's  a, b and c part. You…

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Q: In the system shown, a spring is compressed and pushes a mass of 50Kg down the path shown with two…

A: To obtain the compression of the spring, we must use the concept of energy balance as given below-…

Q: A small 5-kg sphere moves at a constant speed along the horizontal circular path. Note that ACB is a…

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Q: The power transmitted by a belt drive is proportional to the Tension as follows P = Tv _wv² Find…

A: Given    P = Power    g = Gravity    v = Velocity Find   Expression for velocity

Q: Crates A and B weigh 100 lb. and 50 lb. are on frictionless surface. Find the acceleration of each…

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Q: A train of mass 1000 tons n

A: FL=1888.4N (right rail )

Q: A block slides on the inclined plane as shown with friction given between the surface %3D and the…

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Q: 3 kg mass (green block) slides along the rod at a speed of 1.5m/s. Calculate the force of the impact…

A: The collision of two bodies with a high force at a very little time is referred to as a force of…

Q: A particle of mass m  F(x,t)=k/x^2 e^-(t/y)  It moves in one dimension under the action of a force…

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Q: A 200-lb block is sliding along a horizontal plane at 4 ft/s when a force P is applied on it as…

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Q: Q3: The 3-lb collar is released from rest at A and slides freely up the inclined rod, striking the…

A: The weight of collar is The spring constant is  The unstretched length is The initial velocity is

Q: On a sloping road, the driver of the 1.3-tonne car, with an almost constant 300 N thrust from its…

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Q: A 498-gram ball is traveling horizontally at 11.1 m/s to the left when it is suddenly struck…

A: Mb=498g=498×10-3kgVb=11.1m/s (left)V' =-8.8m/s (right)average force, Favg=1300Ntime, t =?using…

Q: The weight of the uniform beam AB is 200 lb, and the 30-lb crate is being hoisted upward at a…

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Forms of Energy

Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.