If a force of 10 N acts on an object and an additional force of 6 N acts on the object in the same direction. What will be the n
et force be on the object?
A- 60 N
B- 16 N
C- 6 N
D- 4 N
Use Newton's 2nd law (f=ma) to solve the following problem.
Grady pushed his tennis ball with a mass of 30 kg causing an acceleration of 1 m/s/s. What force is Grady applying?
A- 30 N
B- 30
C- There is no force, the tennis ball did not move
D- 1 N
A- 60 N
B- 16 N
C- 6 N
D- 4 N
Use Newton's 2nd law (f=ma) to solve the following problem.
Grady pushed his tennis ball with a mass of 30 kg causing an acceleration of 1 m/s/s. What force is Grady applying?
A- 30 N
B- 30
C- There is no force, the tennis ball did not move
D- 1 N
2 answers:
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Answer:
a) Yes, there are shakes in a second (
) in a year there are 31,536,000 seconds... that is 3.1536x
(
)
b) Note that the defined universe day will have 60*60*24=86400 universe seconds if the seconds are defined as normal seconds.
Also one universe day (or 86400 universe seconds) is equivalent to 1010 years. Now using a rule of three we can know the seconds that humans have existed.
That is about 2 and half hours.