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Class XI Physics Kinematics 6

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Question 1

A particle is released from a certain height H = 400 m. Due to the wind the particle gathers the horizontal velocity v_x = ay where a = √5 sec^–1 and y is the vertical displacement of the particle from point of release, then the horizontal drift (displacement) of the particle when it strikes the ground is–

Question 2

In the above question find the speed with which the particle strikes the ground –

Question 3

A disc of radius R has a light pole fixed perpendicular to the disc at the circumference which in turn has a pendulum of length R attached to its other end as shown in figure. The disc is rotated with a constant angular velocity ω. The string is making an angle 30 º with the rod. Then the angular velocity ω of disc is

Question 4

A bomber is moving with a velocity v (m/s) above H meter from the ground. The bomber releases a bomb to hit a target T as shown in figure Then the relation between θ, H and v is-

Question 5

A stunt performer is to run and dive off a tall platform and land in a net in the back of a truck below. Originally the truck is directly under the platform, it starts forward with a constant acceleration at the same instant the performer leaves the platform. If the platform is H above the net in the truck, then the horizontal velocity u that the performer must have as he leaves the platform is –

Question 6

Let R₁ and R₂ respectively be the maximum ranges up and down an inclined plane and R be the maximum range on the horizontal plane. Then R₁, R, R₂ are in