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qUESTIONS

11th-jee

A small block slides down on a smooth inclined plane, starting from rest at time t = 0, Let Sn be the distance travelled by the block in the interval t = n – 1 to t=n Then, the ratio S n /S n + 1 is

11th-jee

A car starts from rest and accelerates at 5m/s². At t = 4s a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at t = 6s (Take g=10m/s²)

11th-jee

An automobile travelling with a speed of 60 km/h, can brake to stop within a distance of 20 m. If the car is going twice as fast, i.e. 120 km/h, the stopping distance will be

11th-jee

All the graphs below are intended to represent the same motion. One of them does it incorrectly. Pick it up Position

11th-jee

A car moving with a speed of 40 km/h can be stopped by applying brakes after at least 2 m. If the same car is moving with a speed of 80km / h what is the minimum stopping distance

11th-jee

Speed of two identical cars are u and 4u at a specific instant. The ratio of the respective distances in which the two cars are stopped from that instant is

11th-jee

A particle starts from rest. Its acceleration (a)versus time (t) is as shown in the figure. The maximum speed of the particle will be

11th-jee

A particle has an initial velocity of 3 î +4 j and an acceleration of 0.4 î +0.3 j. Its speed after 10 s is

11th-jee

A small block slides without friction down an inclined plane starting from rest. Let S be the distance travelled from time t = n – 1 to t=n. Then Sn/ Sn+1 is

11th-jee

A bullet fired into a fixed target loses half of its velocity after penetrating 3 cm. How much further it will penetrate before coming to rest assuming that it faces constant resistance to motion

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