A baseball player slides into home base and experiences coefficients of friction of μ8 = 0.63 and μk = 0.49. The normal force ac
1 answer:
Answer:
323.4 N
Explanation:
Given that,
The coefficient of static friction,
The coefficient of kinetic friction,
We need to find the frictional force acting on the player. As the baseball player is sliding into home base, we will use the coefficient of kinetic friction to find the frictional force.
So, the frictional force acting on the player is 323.4 N.
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The momentum of the 155 kg car afterwards is 469.7 kg m/s to the right
Explanation:
We can solve the problem by using the law of conservation of momentum: the total momentum of the system is conserved before and after the collision, so we can write:
where:
is the mass of the bumper car
is the initial velocity of the bumper car (we take the right as positive direction)
is the final velocity of the bumper car
is the mass of the second bumper car
is the initial velocity of the second car (moving to the left)
is the final velocity of the second car
Solving for ,
where the positive sign means the direction is to the right.
And now we can find the momentum of the 155 kg afterwards, which is
(to the right)
Learn more about momentum:
#LearnwithBrainly
Answer:
Technician A
Explanation:
Often referred to as the profile or series, the aspect ratio of a tire is determined by dividing a tire’s section height by its section width when the tire is: inflated to maximum air pressure, mounted on the approved measuring rim, and under no load. This rules out Technician B.
A tire with a lower aspect ratio responds to lateral force more effectively than a tire with a higher aspect ratio. The aspect ratio affects steering stability. Generally, the shorter the sidewall, or the lower the aspect ratio, the less time it takes to transmit the steering input from the wheel to the tread. The result is quicker steering response. Aspect ratio also affects the tread contact patch. As a rule, a low-profile tire produces a wider tread contact patch. This wider tread contact patch creates a stiffer footprint that reduces distortion and provides improved cornering traction. Aspect ratio also impacts ride. A low-profile tire usually has a stiffer ride than the standard aspect ratio of 75 or more.
