What happens to F21 if q2 is changed and q1 is kept constant? On the other hand, what happens to F21 if q1 is changed and this time q2 is kept constant?

Q: A 40.0-kg child swings in a swing supported by two chains, each 3.00 m long. The tension in each…

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Q: An amusement park in Dubai has a ramp which is frictionless. A child drops a smooth object and it…

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Q: A car traveling at a rate of 19.8 m/s skids to a stop in 2.89 seconds. Determine the skidding…

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Q: An 8 kg otter slides down a hill as shown. The coefficient of friction between the otter and the…

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Q: A tow truck finally arrives to relieve Granny. Once the car (m = 1600 kg) was hitched up, it was…

A: Given data:  Mass (m) = 1600 kg Initial velocity (u) = 0 m/s Final velocity (v) = 25 m/s Distance…

Q: Select all that apply. Given the following system, which points represent steady states of the…

A: A curve as shown in the figure with points A, B, C, D, and E as shown in the figure.We need to find…

Q: 8. A 0.56-kg ball is thrown vertically upward with an initial speed of 16.5 m/s. What is the speed…

A: GIVEN            Mass of the ball = m = 0.56 kg            Initial speed of the ball = V1 = 16.5 m/s…

Q: 3. A magnet of mass of 4.00kg is suspended from the ceiling by a cord as shown. A large magnet is…

A: As cord is not cut, the three forces magnetic, gravitational, tension are in equilibrium .  As cord…

Q: A 1.00-kilogram block is held at rest on a frictionless plane inclined at 30.° to the horizontal.…

A: mass of block (m) = 1 kg surface type : frictionless angle of inclined plane (θ) = 30oinitial height…

Q: Power vs airspeed curve for a jet airplane is shown in the Figure. The velocity that corresponds to…

A: Minimum velocity is defined as that velocity at which the value of Power is minimum . From the graph…

Q: A water slide is constructed so that swimmers, starting from rest at the top of the slide, leave the…

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Q: 5. A sled is pulled along an ice-covered lake. The mass of the sled is 25 kg. The net force acting…

A: Mass , M = 25 kg Force , F = 31 N Time , T = 5 sec To find = Speed after being pulled for 5 sec

Q: Q2 Force F is applied for a short time. Find the object's location at t = 30 s. x(0) = 0, x(0) = 1,…

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Q: Swimmers at a water park have a choice of two frictionless water slides as shown in the figure.…

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Q: 1. If a 13.00kg dog starts from rest and slides down the water slide, which has a height of…

A: 1) Given m=13 Kg (mass of dog) h1=8 m  From conservation of energy Now potential energy of dog at…

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Q: When a model rocket is launched, the propellantburns for a few seconds, accelerating the rocket…

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Q: P. If the motor exerts a constant force of 300 N on the cable, determine the speed of the 20-kg…

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Q: Same situation as in the previous problem this time the magnet has mass 5.13 kg, the force pulling…

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Q: A student exerts a force of 48.0 N to compress a spring 5.50 cm. The force constant for the spring…

A: Given data:  Force (F) = 48.0 N Comparison in spring (x) = 5.50 cm Required: Force constant (k) for…

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Q: In the figure, a 4.2 kg block slides along a track from one level to a higher level after passing…

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Q: 2. A 1.5-kg box is released from rest on a frictionless surface that is sloped at 0 = 35° above the…

A: GivenMass of box ,m=1.5 kgAngle ,θ=35°Sliding plane is 1 m longμk=0.12

Q: an unstretched length of 1.5 m. The collar is released from rest at A and slides up the smooth rod…

A: According to given question

Q: 3. In the figure, a block slides along a track from one level to a higher level after passing…

A: To determine: A block is sliding along a track from one level to the higher level passing through an…

Q: Q26. In which one of the following cases is work scientifically said to be done? O Mira studies for…

A: We know that the work done is given by W=FdCosΘ where Θ is the angle between the force vector &…

Q: Two identical sleds slide down two frictionless hills, each starting from rest at the top of its own…

A: The relation between the speeds and distance travelled s is v2-u2 =2as , where v is the final speed…

Q: A skier is sliding downhill at 7 m/s when she reaches an icy patch on which her skis move freely…

A: Given that: Initial speed of the skier is  u = 7 m/s Difference of altitude of top and bottom of the…

Q: An object weighing 15 N swings at the end of a rope that is 0.86 m long as a simple pendulum. At the…

A: The net force on the object will be the difference of the downwards and upward forces acting on it.…

Q: A stuntman dives off a 200 m tall pole into a bucket of water. His PE On top of the pole is 15000 J.…

A: From the law of conservation of energy, we know that, Total Kinetic Energy (KE) + Total Potential…

Q: A block with mass m tied to a string with length L is being swung in a vertical circle (nothing…

A: According to question, T=6mg      ........(i) The expression of the equation of motion of the system…

Q: 2. The small cart has a speed V, = 4 m/s at point A. Neglecting friction, determine its speed va as…

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Q: Use conservation of energy to calculate ymax, or hp.

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Q: Some water park enthusiasts have made their own looped water slide: They figure that (ignoring…

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Q: Q4. A small object slides along a track from one level to another level after passing through a…

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Q: 4. Two balls are thrown off the top of a building with the same speed. One is thrown off the roof at…

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Q: 5. A block of mass 5 kg starts to slide down a frictionless plane, inclined at 25° as shown in…

A: We need to calculate the acceleration of the block and it’s speed when it reaches the bottom of the…

Q: A 50 g particle that can move along the x-axis experiences the net force Fx=2.0t^2 N where t is…

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Q: Same situation as in the previous problem this time the magnet has mass 7.91 kg, the force pulling…

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Q: A 30.0-kg child swings in a swing supported by two chains, each 3.00 m long. The tension in each…

A: Given Mass of child m=30 kg Tension T=320N Radius r=3m

Q: A block is placed on top of a ramp with friction. Initially it is at rest. Then it slides down and…

A: Given values: Mass, m=1.8 kg Angle of inclination ,θ=20° Friction ,f=2 N Acceleration due to…

Q: If the average force of friction is equal to 0.15 of its weight, with what speed will it reach point…

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Q: A ball is released from rest from the twentieth floor of a building. After 1 s, the ball has fallen…

A: The expression for Newton's second equation of motion is, s=ut+12gt2.............(1) Here, s is the…

Q: H=0-

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!