On top of the racket you have balanced a ball. Which statement is true? the hand

Question

On top of the racket you have balanced a ball. Which statement is true? the hand or the racket and the force of the ball on the racket are equal and opposite. hand or. the racket and the force of the racket on the ball are equal and opposite. hand and the force of the ball on the racket are equal and opposite. racket on your hand and the force of the racket on the ball are equal and opposite. the your hand on the racket and the force of the racket on your hand are equal and opposite. from the ceiling of an elevator. The elevator is moving up at constant speed. tension:r the string? greater than less than mg for plastic on wood are 030 and 0.40. respectively. How much horizontal

Explanation / Answer

(a)

According to Newton's first law , bus speed is increased

(b)

instaneous equal to zero because it speed is zero at maximum height

(c)

option(c) is correct answer

(d)

m = F/a = 16/2 = 8 kg

(e)

F - f= ma

a = F-f/m = 5-3/10 = 0.2 m/s^2

(f)

F = m( vf-vi/t) = 1000 ( 27/7) = 3.9 * 10^3 N

(g)

option(e) is correct

(h)

T- mg = ma

T = m(g+a)

greater than mg

(i)

F = fk = us mg = 0.5 ( 3) = 1.5 N

(j)

option(b) is correct answer

(k)

down

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