Time = (distance) / (speed)
Time = (0.25 km) / (65 km/hr)
<em>Time = 0.00385 hour</em>
(That's 13.85 seconds.)
<u />
<u>Better way:</u>
Distance = 0.25 km
Distance = 250 meters
Speed = (65 km/hr) x (1000 m/km) x (1 hr/3600 sec)
Speed = 18.06 m/sec
Time = (250 m) / (18.06 m/s)
<em>Time = 13.85 seconds </em>
KINEMATICS
Uniform or constant motion in a straight line (rectilinear). Speed or velocity constant and/or acceleration constant. If motion is up and down and/or has an up and down component then acceleration omn earth will be g. g is about 10m/s/s.
speed = distance/time
velocity = displacement/time
s=distance ... u=initial speed ... v = final speed ... a = acceleration ... t = time
v=u+at
v^2=u^2+2as
s=ut+1/2at^2
Answer:
Explanation:
Given
mass of boat 
mass of Person 
Length of boat 
Center of mass of boat and child
when child reaches another end of boat, boat is shifted by x cm
Center of mass of the system will remain the same
Equating 1 and 2 we get
<span>The glowing of a neon light is caused by electrons emitting energy as they </span>move from higher to lower energy levels.
