CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Measuring Size

Raju walks at...

Question

Raju walks at a speed of 12km in 40 mins. Express his speed in m/sec.

A

1 m / s e c

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

2 m / s e c

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

4 m / s e c

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

5 m / s e c

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is B $5 m / s e c$
We have,

$d = 12 k m = 12000 m,$

$t = 40 min = 40 \times 60 = 2400 sec$

We know that

$s p e e d (s) = \frac{d}{t}$

$s = \frac{12000}{2400}$

$s = \frac{12000}{2400}$

$s = 5 m / sec$

Hence, this is the answer.

Suggest Corrections

thumbs-up

0

Similar questions

Q. The distance between two particles is decreasing at the rate of

6 \frac{m}{s e c}

. If these particles travel with same speeds and in the same direction, then the separation increase at the rate of

4 \frac{m}{s e c}

. The particles have speeds as

Q. The distance between two particles is decreasing at the rate of

6 \frac{m}{s e c}

. If these particles travel with same speeds as in previous case and in the same direction, then the separation increase at the rate of

4 \frac{m}{s e c}

. The particles have speeds as

A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?

Q. A man of height 6 ft walks at a uniform speed of 9 ft/sec from a lamp fixed at 15 ft height. The length of his shadow is increasing at the rate of
(a) 15 ft/sec
(b) 9 ft/sec
(c) 6 ft/sec
(d) none of these

Q. A train accelerating uniformly from rest attains a maximum speed of 40 m/s in 20 sec. It travels at this speed for 20 sec, and is brought to rest with uniform retardation in 40 sec. The average velocity during this period is

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Order of Magnitude

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon