A 37.0-kg child swings in a swing supported by two chains, each 2.98 m long. The tension in each chain at the lowest point is 360 N. (a) Find the child's speed at the lowest point. m/s (b) Find the force exerted by the seat on the child at the lowest point. (Ignore the mass of the seat.) N (upward)

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A: radius (r) = 0.1 m Current (I) = 20 A , clockwise

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A: Meter scale is a device usee to measure length.

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Q: find lagrnJEs equation b.

A: Given,  Lq.,q,t= q.4-q2q= q.4-qLagrangian equation  is given as d dt∂L∂q.-∂L∂q=0+1=1

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A: To find-Velocity of sound (V)=?Given-Resonating length (l)=0.3 mFrequency (n)=480 Hz

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Q: A l O

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A: Given :               Is1= 2Is2 = 10-15AI = 4mA

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A: Given Speed of the salmon is v=5 mph at 60o North The speed of the ocean is u=3 mph towards east

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A: Given data: The height of an object is hi=0.07 m.

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Q: e ww R w R FR R R R su b 3R find Reg=?

A: Visualize the Problem:

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A: Unit of g = m/s²Unit of D = mUnit of ρ = kg/m³Unit of ∆ρ = kg/m³Unit of f = 1/sUnit of ∆y = m

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A: Given: The maximum grade of the ramp 8.3%.

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A: Solution:   It is given that,   F1=150 N, box covers X distance in 5 sF2=250 N, box covers 3X…

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A: solution is given as

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.