It will cause heat from friction
Answer: 0.5m/s²
Explanation:
Given that,
acceleration of bike (a) = ?
Mass of bike (m) = 20kg bike
(Note that the displacement of the bike is in the northerly direction)
constant unbalanced force (f) = 10 N
According to Newton's second law of motion, the acceleration of the bike will be directly proportional to force acting on it but inversely proportional to the mass of the bike.
Hence, Force α mass x acceleration
f = ma
Make a the subject formula
a = f / m
Now find the acceleration of the bike
a = 10N / 20kg
a = 0.5m/s²
Thus, the acceleration of the bike pedaled in the northerly direction is 0.5m/s²
Answer:
Therefore, the correct option is c: 0.
Explanation:
We can find the speed of the combined object by conservation of linear momentum:
Where:
"i" is for initial and "f" is for final
m₁: is the mass of the first object = m
m₂: is the mass of the second object = 3m
v₁: is the velocity of the first object
v₂: is the velocity of the second object
Therefore, the correct option is c: 0.
I hope it helps you!
Answer: Hello mate!
We want to find the average speed while the trucker was on the road, this average velocity is equal to the total distance divided by the total amount of time in the road.
The total distance is 2865 miles, and we know that the entire trip required 77 hours and 30 minutes, but there are 16 h and 30 min where spend sleeping and 3h 40min was used for meals, then the total amount of time in the road is:
77 hours and 30 mins - 3 hours and 40 mins - 16 hours and 30 mins
= 57 hours and 20 minutes of time in the road.
where we can write this in hours as 57.33 hours.
then the velocity in miles per hour is:
2856mi/57.33h = 49.8 miles per hour.
Every action has an equal but opposite reaction