Questions
A policeparty is chasing a dacoit in a jeep which is moving at a constant speed v. The dacoit is on a motorcycle. When he is at a distance x from the jeep, he accelerates from rest at a constant rate . Which of the following relations is true if the police is able to catch the dacoit?
detailed solution
Correct option is C
If police is able to catch the dacoit after time t, then vt=x+12αt2. This gives α2t2−vt+x=0⇒t=v±v2−2αxα. For t to be real, v2>2ax.Talk to our academic expert!
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Two cars are moving in the same direction with the same speed (= 30 km/h). They ale separated by a distance of b km. A truck moving in the opposite direction meets these two cars at an interval of 4 minute. The speed of truck is
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