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scoundrel [369]
3 years ago
10

compared to an object that does not roll, but instead slides without friction, should a rolling object be released from the same

,a greater, or a lesser height in order just barely to complete the loop the loop?
Physics
1 answer:
Zinaida [17]3 years ago
6 0

Answer:

from a lesser hight

Explanation:

because you need less force

hope its right if it is mark brainlyest ;)

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A block of mass 1.3 kg is resting at the base of a frictionless ramp. A bullet of mass 50 g is traveling parallel to the ramp su
aleksandrvk [35]

Answer:

s = 2.65 m

Explanation:

given,

mass of block,M = 1.3 Kg

mass of bullet,m = 50 g = 0.05 Kg

speed of bullet,u  = 250 m/s

speed of bullet after collision,v = 100 m/s

distance traveled by the block = ?

Assuming the angle of inclination of ramp equal to 40°

calculating the speed of the block

using conservation of momentum

M u' + m u = m v + M v'

initial speed of the block is equal to zero

0 + 0.05 Kg x 250 = 0.05 x 100 + 1.3 x v'

1.3 v' = 7.5

  v' = 5.77 m/s

now, calculation of acceleration

equation  the horizontal component

-mg sin θ = ma

  a = - g sin θ

  a = - 9.8 x sin 40°  

  a = -6.29 m/s²

using equation of motion for the calculation of distance moved by the block

v² = u² + 2 a s

0² = 5.77² + 2 x (-6.29) x s

12.58 s = 33.29

s = 2.65 m

hence, the distance moved by the block is equal to 2.65 m

3 0
4 years ago
What is the current at P? <br> A 0.17A<br> B 0.26A<br> C 0.43A<br> D 1.38A
UkoKoshka [18]

Answer:

ykfhti6d and smart ways of 666 and smart ways of learning and smart ways of learning and smart ways of learning is

Explanation:

dhhdhdh 6g and smart ways of learning and smart ways of learning and smart ways of learning and smart ways of learning and smart ways of learning and smart ways of learning and smart ways of learning and smart ways

8 0
3 years ago
The force of the pulley is 652 newtons. It accelerates at 53 m/s. How much does the object weigh. a 1230 grams b 1.230 gram c 12
RoseWind [281]

Answer:

d. 12.30 grams

Explanation:

Given the following data;

Force = 652 N

Acceleration = 53 m/s²

To find how much the object weigh, we would need to determine its mass;

Force = mass * acceleration

652 = mass * 53

Mass = 652/53

<em>Mass = 12.30 grams.</em>

<em>Therefore, the object weighs 12.30 grams. </em>

5 0
3 years ago
A nail is inserted in the trunk of a tree at a height of 1 meter from the ground
worty [1.4K]

Answer:

15m

Explanation:

Hello! first to solve this problem we must find that so much that the tree grew in the 15 years this is achieved by dividing the height of the tree before and after

the tree grew 10 times its initial length in 15 years, so to find how tall the nail is, we multiply this factor by 1.5m

X=(1.5m)(10)=15m

the nail is 15 meters above ground level

6 0
3 years ago
What is the function of layer of air trapped under the hovercraft​
aev [14]

Answer:b

Explanation:

3 0
3 years ago
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