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would it be 9.0798m/s? d=vi.t + 1/2.a.t^2 ?

Homework Statement An object is thrown from the ground into the air with a velocity of 20.0m/s at an angle of 27.0° to the horizontal what is the maximum height? v= 20.0 m/s a=-9.81m/s^2 angle = 27.0 Homework Equations a=v/t , v= d/t The Attempt at a Solution sin(27.0°) = y/20.0m/s (first...

Thanks boss

Ek= 60 J?

So if I am right, Ep2 = 20N x 1.0 m = = 20N Ep1 + Ep2 = 40N + 20N = 60N Ek= 60N?

book has traveled 1.0 meters? ac= v^2/r ?

Non-Conservative forces acting on the book are , air resistance, sound and heat. The force acting on the book are gravity

Homework Statement A physics book weighing 20 N is dropped from a position 2.0 meters above the floor. a) what is the potential energy of the book before it is dropped? b) what is the kinetic energy of the book when it is 1.0 meter from the floor Homework Equations Ek = 1/2mv^2 , Ep=...

can you show the correct equation to find v?

dHomework Statement A bucket 2.00kg is whirled in a vertical circle of a radius 1.10m. At the lowest point of its motion the tension in the rope supporting the bucket is 25.0 N a) find the speed of the bucket b) how fast must the bucket move at the top of the circle so that the rope does not go...

Ok got it! Thanks for the help!

There would be less friction to keep the car on the road, making the car crash.

Would the radius become smaller making the acceleration larger? Correct me if I'm wrong

I was thinking ac = v^2/r , ac= 4∏^2r/T^2 But I am not sure

Homework Statement will the acceleration of a car be the same when the car travels around a sharp curve at a constant 60 km/h as when it travels around a gentle curve at the same speed? Explain. Homework Equations None The Attempt at a Solution No the acceleration will not be the same...