Ratio of the distance travelled in 1 second, 2 seconds, 3 seconds
A) 12 : 22 : 32
B) 1 : 3 : 5
C) 1 : 2 : 3
D) 1: 5 : 9
1 Answers
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The velocity-time relation of a particle starting from rest is given by v = kt where k = 2 m/s^2. The distance travelled in 3 sec is
Correct Option is (A) 9 m Given, V = kt \(\because v = \frac{dx}{dt}\) \( \frac{dx}{dt} = kt\) \(\int\limits_0^x dx = \int\limits_ 0^3 kt \ dt\) \(x = k \left[\frac{t}{2}\right]_0^3\) \(x = k \left[\frac{9}{2}\right]\) \(x = 2 \times...
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The velocity-time relation of a particle starting from rest is given by v = kt where k = 2 m/s^2. The distance travelled in 3 sec is
2 Answers
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A particle moves in a circle of radius 1 m with speed of 1 m/s. After completing half cycle. Find out :- (i) Displacement (ii) Distance travelled (iii
Correct Answer - (i) 2m, (ii) `pim` (iii)`(2)/(pi)` (iv) `(2)/(pi)m//s^(2)`
2 Answers 2 views
A man travels half time of its journey with speed of 5m/s and for remaining half time he moves half of its total distance travelled, with speed of 3 m
Correct Answer - 4.5 m/s
2 Answers 1 views
A body moving with uniform acceleration covers a distance of 14 m in first 2 second and 88 m in next 4 second. How much distance is travelled by it in
Correct Answer - 5m
2 Answers 8 views
A swimmer takes 4 second in crossing some distance in downstream and taken 6 second in upstream for same distance then find the time taken by him to c
Correct Answer - 4.8 sec
2 Answers 1 views
The sun does not appear red during noon hours because the distance travelled by the sun rays in the atmosphere is less
D) Speed of light is constant when it has passed through medium for all colotus.
2 Answers 1 views
A freely falling body describes a distance x in first 2 seconds and a distance y in next 2 seconds. Then
Correct option is D) y = 3x
2 Answers 1 views
A car reaches 300 km in 6 hours then how much distance is travelled by the car in 8 hours ?
Correct option is (D) 400 km Speed of the car \(=\frac{Speed}{Time}\) \(=\frac{300\,km}{6\,hours}\) = 50 km/h Distance travelled by the car in 8 hours = speed \(\times\) time = 50 km/h \(\times\) 8 hours = (50 \(\times\) 8) km = 400 km
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Statement -1 : Distance travelled in nth second has the dimensions of velocity. Statement -2 : Because it is the distancce travelled in one (particula
Correct Answer - (a) Both the statements are true and statement -2 is correct explanation of statement-1.
2 Answers 1 views