3 years ago

I am Pushing down at a 20

Physics

1 answer:

s344n2d4d5 [400]3 years ago

7 0

Answer:

hivhhhh

Explanation:

iiiiuuuujrurj

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After leaving the end of a ski ramp, a ski jumper lands downhill at a point that is displaced 36.0 m horizontally from the end o

Cloud [144]

Answer

v = 18.99 m/s

$\theta = 33.20^0$

Explanation:

given,

displacement = 36 m

velocity = 19 m/s

angle =33.2 °

a) $v_x = v cos (\theta)$

$v_x = 19 cos (33.2^0)$

$v_x = 15.89\ m/s$

$v_y = v sin (\theta)$

$v_y = 19 sin (33.2^0)$

$v_y = 10.40\ m/s$

magnitude

$v = \sqrt{15.89^2+10.40^2}$

v = 18.99 m/s

b) direction

$tan \theta = \dfrac{10.40}{15.89}$

$\theta = tan^{-1}(0.654)$

$\theta = 33.20^0$

3 0

3 years ago

You did 150 joules of work lifting a 120-newton backpack.

NNADVOKAT [17]

In the given question, we already know
Work done = 150 joules
Force = 120 Newton
Now we know from the study of physics that
Distance (D) = Work done / Force
(a) To find the height upto which the backpack has been lifted,
D = Work done / Force
   = 150 / 120
   = 15 / 12
   = 5 / 4
   = 1.25
So the backpack was lifted to a height of 1.25 metres.
(b) Now we have the find the weight of the backpack in pounds
We know that 1 pound = 4.448 Newton
So if
4.448 Newton = 1 pound
Then
120 Newton = (120 / 4.448) pounds
   = 26.978 pounds
So the backpack weighed 26.98 pounds.

5 0

4 years ago

Sean is moving heavy furniture by sliding it across the floor. He puts a blanket underneath the furniture. Why dis this help him

nasty-shy [4]

I think that it would help him so it can slide and help him move his furniture faster

4 0

3 years ago

A train moves at a constant velocity of 50 km/h. how far will it move in 0.05 h?

castortr0y [4]

   ( 50 km/hr) x (0.05 hr)

   = (50 x 0.05) km

   = 2.5 km = 2,500 meters

6 0

3 years ago