Laws Of Motion Question 148

Question: Consider a car moving on a straight road with a speed of 100 m/s. The distance at which the car can be stopped is [μk=0.5]

Options:

A) 400m

B) 100m

C) 1000m

D) 800m (Note: It should be minimum distance in which the car can be stopped.)

Show Answer

Answer:

Correct Answer: C

Solution:

[c] Retardation due to friction =μg we know v2=u2+2as

0=(100)22(μg)s Or 2μgs=100×100 Or s=100×1002×0.5×10=100m



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक