The position of a body on the x axis is discribed by the equation x=-27t+t3,where x is in meters and t is in seconds. The acceleration of , at the moment it reverses its direction of motion is what?  a)54m/s2 b) 31m/s^2 c)18 m/s^2 d)6.0 m/s^2 e) zero

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A: Given data: Vector A=Ax+Ay ⇒ A=2.9 x + 5.3 y         (1) Vector B=Bx+By ⇒ B=7.7 x -10 y…

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A: Shunt resistance is defined as the slope of the dark current versus applied voltage to the detector.

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A: mass of block (m) = 2 kg θ = 15 degree t = 2 seconds μs = 0.3μk = 0.2

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Q: Find the focal length of a convex mirror whose radius of curvature is 32 cm.

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A: in this question  we compare x and y components  of Em and Ep.

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A: Solution:-

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Q: Calculate and compare its kinetic energy.

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A: Given:mass of the chain, m = 80 kgtotal length of the chain, l = 10 mheight raised, h = 6 mAsked:a)…

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A: in this question  we drew FBD and get equilibrium  equation at different point.

Projectile Motion