Answer:
since small stone has less mass so the gravitational pull of the earth is lesser in case of this but this is not for the bigger stone as the gravitational pull of the earth is greater...
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Answer:
mass determines the amount of force required to overcome the inertia of an object.
Answer: Accelaration is 2.77 m/s*s
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Explanation:
V0=0km/h=0m/s
V1=100 km/h=27.7 m/s
t=10s=
Use equation for accelaration : a=(V1-V0)/t
a=(0m/s-27.7m/s)/10s
a=-27.7s/10s
a=2.77m/s*s
Answer:
average speed
= [(10-3)/12 km] / [(49.5-32.0)/60 hour]
= 5*7 / 17.5
= 2 km/h .
Answer:
Car collides.
Explanation:
The (negative) acceleration experimented by the car will be given by Newton's 2nd Law 
, where f is the friction force, which is the only force acting on the car on the horizontal direction. Its value is given by the formula 
since the normal force and the weight of the car are balanced on the vertical direction. All this gives us the equation 
To calculate the distance traveled by the car, we will use the equation for accelerated motion 
on the form (since it comes to a rest 
):
Which for our values is (taking the direction of movement as positive, which makes <em>a </em>negative, so we add a -1 to account for this):
Which means the car crashes against the tree.
