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aev [14]
4 years ago
15

Denise is conducting a physics experiment to measure the acceleration of a falling object when it slows down and comes to a stop

. She drops a wooden block with a mass of 0.5 kilograms on a sensor on the floor. The sensor measures the force of the impact as 4.9 newtons. What’s the acceleration of the wooden block when it hits the sensor? Use F = ma.
Physics
2 answers:
lilavasa [31]4 years ago
6 0

Answer:

a= 9.8

Explanation:

anastassius [24]4 years ago
4 0
To calculate the acceleration of the wooden block, we use the expression F=ma where F is the force applied, m is the mass of the object and a is the acceleration. We calculate as follows:

F = ma
4.9 = 0.5a
a = 9.8 

Hope this answers the question. Have a nice day.

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What is the change in momentum of a 1000kg car moving from 1 m/s to 8m/s
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Answer:

Explanation:

In order to calculate the change of any quantity you must substract the initial value of that quantity from the final value of the same quantity.

The concept of momentum is defined as,

Momentum = mass×velocity

So we calculate the change of momentum as,

Momentum change = final momentum - initial momentum

= mv - mu =m(v-u)

Where v = final velocity

u = initial velocity

m = mass of the object

So to calculate the momentum change of the car,

Change in momentum of the car = 1000×(8-1) = 1000×7 = 7000 Ns

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3 years ago
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jek_recluse [69]

Answer:

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You should begin viewing a specimen with the 10X objective lens that is false.

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