Physics-
General
Easy

Question

A car with a vertical wind shield moves along in a rain storm at speed of 40 km h–1. The rain drops fall vertically with a terminal speed of 20m s–1. The angle at which the rain drops strike the wind shield is

  1. tan to the power of negative 1 end exponent invisible function application   left parenthesis 2 divided by 3 right parenthesis    
  2. tan to the power of negative 1 end exponent invisible function application   left parenthesis 3 divided by 2 right parenthesis    
  3. tan to the power of negative 1 end exponent invisible function application   left parenthesis 5 divided by 9 right parenthesis    
  4. tan to the power of negative 1 end exponent invisible function application   left parenthesis 9 divided by 5 right parenthesis    

The correct answer is: tan to the power of negative 1 end exponent invisible function application   left parenthesis 3 divided by 2 right parenthesis

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The resultant of the three vectors stack O A with rightwards arrow on top comma   stack O B with rightwards arrow on top comma     text and end text   stack O C with rightwards arrow on top shown in figure.

The resultant of the three vectors stack O A with rightwards arrow on top comma   stack O B with rightwards arrow on top comma     text and end text   stack O C with rightwards arrow on top shown in figure.

physics-General
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Given that stack R with rightwards arrow on top text = end text stack text P end text with rightwards arrow on top text + end text stack text Q end text with rightwards arrow on top. And stack R with rightwards arrow on top makes angle alpha with stack P with rightwards arrow on top and beta with stack Q with rightwards arrow on top. Which of the following relations is correct?

Given that stack R with rightwards arrow on top text = end text stack text P end text with rightwards arrow on top text + end text stack text Q end text with rightwards arrow on top. And stack R with rightwards arrow on top makes angle alpha with stack P with rightwards arrow on top and beta with stack Q with rightwards arrow on top. Which of the following relations is correct?

physics-General
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Resultant of the two vector stack F with rightwards arrow on top subscript 1 end subscript   text and end text   stack F with rightwards arrow on top subscript 2 end subscript is of magnitude P. If stack F with rightwards arrow on top subscript 2 end subscript is reversed, then resultant is of magnitude Q. What is the value of P2 + Q2 ?

Resultant of the two vector stack F with rightwards arrow on top subscript 1 end subscript   text and end text   stack F with rightwards arrow on top subscript 2 end subscript is of magnitude P. If stack F with rightwards arrow on top subscript 2 end subscript is reversed, then resultant is of magnitude Q. What is the value of P2 + Q2 ?

physics-General
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In the figure, stack E with rightwards arrow on top   minus   stack D with rightwards arrow on top   plus   stack C with rightwards arrow on top equals

In the figure, stack E with rightwards arrow on top   minus   stack D with rightwards arrow on top   plus   stack C with rightwards arrow on top equals

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Two vectors A and B are such that A+B=C and A2+B2 = C2. Which of the following statements is correct?

Two vectors A and B are such that A+B=C and A2+B2 = C2. Which of the following statements is correct?

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A particle is moving eastward with a velocity of 5 m/s. In 10 seconds, the velocity changes to 5 m/s northwards. The average acceleration in this time is

A particle is moving eastward with a velocity of 5 m/s. In 10 seconds, the velocity changes to 5 m/s northwards. The average acceleration in this time is

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A truck travelling due north at 30 m/s turns west and travels at the same speed; then the change in velocity is

A truck travelling due north at 30 m/s turns west and travels at the same speed; then the change in velocity is

physics-General
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Two forces each numerically equal to 10 dynes are acting as shown in the following figure, then the resultant is

Two forces each numerically equal to 10 dynes are acting as shown in the following figure, then the resultant is

physics-General
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Find the number of non-colinear vector producing zero resultant.

Find the number of non-colinear vector producing zero resultant.

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Volume of a Cuboid is 30 cm³ and its lambda= 5 cm, b = 3 cm Find its height

Therefore, the height of the cuboid is 2 cm.

Volume of a Cuboid is 30 cm³ and its lambda= 5 cm, b = 3 cm Find its height

Maths-General

Therefore, the height of the cuboid is 2 cm.

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Find the altitude of a triangle whose base is 20 cm and Area is 150 cm²

Therefore, the height of the triangle is 15cm.

Find the altitude of a triangle whose base is 20 cm and Area is 150 cm²

Maths-General

Therefore, the height of the triangle is 15cm.

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ABCD is a Parallelogram DL perpendicular to the power of r end exponent AB and DM perpendicular to the power of r end exponent BC If AB = 18 cm, BC=12 cm and DM = 9 cm then find DL .

ABCD is a Parallelogram DL perpendicular to the power of r end exponent AB and DM perpendicular to the power of r end exponent BC If AB = 18 cm, BC=12 cm and DM = 9 cm then find DL .

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parallel
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ABCD is a Parallelogram, DL perpendicular to the power of r end exponent AB If AB = 20 cm, AD = 13 cm and area of the Parallelogram is 100 cm², find AL.

ABCD is a Parallelogram, DL perpendicular to the power of r end exponent AB If AB = 20 cm, AD = 13 cm and area of the Parallelogram is 100 cm², find AL.

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The base of a Parallelogram is twice its height If the area of the Parallelogram is 512 cm², then find the height

Therefore, height of the parallelogram is 16cm.

The base of a Parallelogram is twice its height If the area of the Parallelogram is 512 cm², then find the height

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Therefore, height of the parallelogram is 16cm.

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Find the Area of a Square whose side is 63 cm

Therefore, the area of square is 3969 space c m squared.

Find the Area of a Square whose side is 63 cm

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Therefore, the area of square is 3969 space c m squared.

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