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A ball is gently dropped from a height of 20 m. If its velocity increases uniformly at the rate of 10 ms-2, with what velocity will it strike the ground? After what time will it strike the ground? - Physics Cbse class 11 1 AnswerTwo objects A and B are projected vertically at 130m above the ground level. A is projected up with a velocity of 30m/sec and B is projected downwards with the same velocity. Find the time taken by each object to reach the ground.0 AnswerA stone is released from the top of a tower of height 19.6 m. Calculate its final velocity just before touching the ground. - Physics Cbse class 11 1 AnswerA batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because - Physics Cbse class 11 1 AnswerA stone is allowed to fall from the top of a tower 100 m high and at the same time another stone is projected vertically upwards from the ground with a velocity of 25 m/s. Calculate when and where the two stones will meet.- Physics Cbse class 11 1 AnswerA 100 m sprinter uniformly increases his speed from rest at the rate of ----------Physics CBSE class 11 20161 AnswerFind (a) the velocity with which it was thrown up, (b) the maximum height it reaches, and (c) its position after 4 s. - Physics Cbse class 11 1 Answer Calculate (i) the maximum height to which it rises, (ii) the total time it takes to return to the surface of the Earth. - Physics Cbse class 11 1 Answer Calculate (i) the maximum height to which it rises, (ii) the total time it takes to return to the surface of the Earth. - Physics Cbse class 11 1 AnswerDefine satellites. Obtain the expressions for orbital velocity, time period and height above the surface of the earth. Physics Cbse class 11 1 Answer A Projectile is given an initial velocity of ˆ ˆ (i 2j) m/s, + where ˆ i is along the ground and ˆ j is along the vertical. If g = 10 m/s2 - physics 20131 AnswerThe term ‘Working head’ in context of water supply system means, GATE- Architecture and Planning- 2013 1 AnswerA ball of mass (m) 0.5 kg is attached to the end of a string having length (L) 0.5 m. The ball is rotated on a horizontal circular path about vertical axis. The maximum tension that the string can bear is 324 N. The maximum possible value of angular velocity of ball (in radian/s) is - jee main 2012 physics 1 Answer A projectile is fired at an angle θo with intial velocity vo. Show that its trajectory is parabolic -Physics Cbse class 11 1 Answer what will be the height attained by the stone and how much time will it take to reach there? - Physics Cbse class 11 1 AnswerA bird is sitting on the top of a 80 m high tree. F rom a point on the ground, the angle of elevation of the bird is 45°. The bird flies away h orizontally in such a way that it remained at a constant height from the ground. Afte r1 AnswerWhich of the following statements is TRUE for the relation between discharge velocity and seepage velocity? - gate civil 2017 2 AnswerWhich physical property of the medium governs the response of Ground Penetrating Radar (GPR)? GATE-Geology and Geophysics-Question-20121 AnswerVelocity of an object fired directly in upward direction is given by ܸV = 80 − 32 t , where t (time) is in seconds. When will the velocity be between 32 m/sec and 64 m/sec? GATE- Agricultural Engineering- 20131 AnswerA hoop of radius r and mass m rotating with an angular velocity ω0 is placed on a rough horizontal surface. The initial velocity of the centre of the hoop is zero. What will be the velocity of the centre of the hoop when it ceases to slip ? - physics 20131 Answer