The mass is 7.81 kilograms
In 16 times
KE= o.5 m times V squared
Answer:
The person on the truck would have the same speed as that of the truck. Also, before the ball is thrown, the ball would have the speed as that of the truck.
It is possible for a person standing at the side of the road to view the falling straight down. This would be possible if the ball is thrown backwards with the same magnitude of velocity as that of truck.
To the person on the truck, the ball would appear to have forward motion with the speed of the truck.
Frequency of any wave = (the wave's speed) divided by (its wavelength)
Speed of light = about (3 x 10 to the 8) meters per second, in vacuum.
Frequency = (3 x 10 to the 8) / (4.1 x 10 to the -12) = 7.317 x 10 to the 19 Hz.
That's the same as 73,170,000,000 GHz.
Note:
That's the answer for the information given in the question, but the information in
the question is incorrect by 5 orders of magnitude. The wavelength of violet light,
or anything in the visible range, is a few hundred 'nanometers' ... a few hundreds
of 10 to the -9 . So the number in the question should be 4.10 x 10 to the -7,
not -12, and the frequency should be 731,700 GHz.
The tilt never changes but the rotation does
