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
Learn more:
Velocity brainly.com/question/10962624
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Answer:
Explanation:
1 ) the volume of helium in the balloon when fully inflated
= 4/3 π R³
= 4/3 x 3.14 x 5.3³
= 623.3 m³
2 ) force of gravity on the entire system ,but with no people
= (mass of the empty balloon and basket + mass of helium )x g
=( 129 + 623.3 x.18 )x 9.8
= 2363.7 N
3 ) magnitude of the buoyant force on the entire system (but with no people )
( Volume of empty balloon + basket + volume of helium ) density of air x g
( 0.057 + 623.3 ) x 1.23 x 9.8
= 7513.94 N
4 ) magnitude of the force of gravity on each person
Mass of each person x g
= 71 x 9.8
= 695.8 N
7 A.M
I’m pretty sure that’s it
Answer:
That the polar air has has more pressure than the air at the equator.
Explanation:
Answer:
As an object moves in a circle, it is constantly changing its direction. ... Accelerating objects are objects which are changing their velocity - either the speed (i.e., magnitude of the velocity vector) or the direction. An object undergoing uniform circular motion is moving with a constant speed.
