Question

A sailboat starts from rest and accelerates at a rate of 0.18 m/s2 over a distance of 494 m.
(a) Find the magnitude of the boat's final velocity.
(b) Find the time it takes the boat to travel this distance.

Answer 1

any physics teacher can help me ??????

Answer 2

A car starts from rest and travels for 4.1 s with a uniform acceleration of +1.4 m/s2. The driver then applies the brakes, causing a uniform acceleration of -1.8 m/s2. The breaks are applied for 1.80 s.

Answer 3

Vf^2=2*acceleration*distance

distance=1/2 a*t^2 solve for time t.

Answer 4

1. V^2 = Vo^2 + 2a*d.
a. V^2 = 0 + 0.36*494, V = ?.
b. d = 0.5a*t^2.
494 = 0.5*0.18*t^2. t = ?.

2. V = Vo + a*t = 0 + 1.4*4.1 = 5.74 m/s.

V^2 = Vo^2 + 2a*d.
0 = (5.74)^2 - 3.6d. d = ?.

Answer 5

87.01