The dwarf planet Ceres contains over 50% of the mass of the main asteroid belt.
1 answer:
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24.89m
Explanation:
Given parameters:
Force on car = 342N
Initial velocity = 0
Time taken = 12s
Mass of the car = 989kg
Unknown:
Distance covered by the car = ?
Solution:
To solve this problem, we simply use one of the appropriates equations of motions.
s = ut + at²
s is the distance
u is the initial velocity
t is the time taken
a is the acceleration of the car.
To find the acceleration;
Acceleration = =
Acceleration = 0.35m/s²
Inputting the parameters in the equation:
s = 0 x 12 + x 0.35 x 12² = 24.89m
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Answer:
the above picture might help
Speed of the tip of the minute hand=V=0.0244 cm/s
Explanation:
The angular velocity of the minute hand is given by
T= time period of the minute hand=60 min=3600 s
so ω= 2 π/3600 rad/s
Now linear velocity v= r ω
r= radius of minute hand=14 cm
so v= 14 (2 π/3600)
V=0.0244 cm/s