Refer to the diagram shown below.
m = 1.0 kg
Let R = resistive force of the water.
The boat accelerates from rest to 0.20 m/s in 0.50 s. Its acceleration is
a = (0.20 m/s)/(0.50 s) = 0.40 m/s²
The driving force on the boat is Fcos(45°) - R. Therefore
(2cos(45°) - R N) = (1 k)*(0.4 m/s²)
1.4142 - R = 0.4
R = 1.0142 N
Answer: The resistive force of the water is 1.0 N (nearest tenth)
Uh I think it is inertia but I could be wrong
35m/s is meters per second.
35x35=1225
it will have gone a total of 1225 meters on thirty five seconds
The angle between incident ray and reflected ray is 60 degree. the value of angle of incidence and angle of reflection is 30 degree
Answer:
Explanation:
Step one:
given data
mass = 7kg
acceleration =2m/s^2
time= 9seconds
acceleration = velocity/time
velocity= acceleration *time
velocity=2*9
velocity= 18m/s
distance moved= velocity* time
distance= 18*9
distance=162m
we also know that the force on impulse is given as
Ft=mv
F=mv/t
F=7*18/9
F=126/9
F=14N
work done = Force* distance
work done=14*162
work=2268Joules
work= 2.27kJ