Related Questions

একটি স্প্রিংকে (স্প্রিং ধ্রুবক- 980 Nm-1) 10 cm সঙ্কুচিত করে এর সাহায্যে 200 g ভরের একটি বলকে লম্বভাবে উপরে ছোড়া হলো। বলটি উপরের দিকে কত উচ্চতায় উঠবে? (A 200 g ball is thrown vertically upward by compressing a spring (spring constant: 980 Nm-¹) by 10 cm. What will be the height reached by the ball?)
A 0.25 m
B 2.5 m
C 25.5 m
D 51 m
A ball which is thrown upwards, returns to the ground describing a parabolic path during its flight
A Vertical component of velocity remains constant
B Horizontal component of velocity remains constant
C Speed of the ball remains constant
D Kinetic energy of the ball remains constant
If an object is thrown upwards, what will be its velocity, when it reaches its maximum height?
A 0 m\/s
B 4.9 m\/s
C 14.7 m\/s
D 20 m\/s
In each of the questions 20-21 , there are two quantities : Quantity A and Quantity B. You are to compare those quantities . Quantities A 5 (a-7) Quantity B 5a - 7
A Quantity A is greater
B Quantity B is greater
C Both quantities are equal
D It is impossible to determine
A man standing on a edge of a cliff throws a stone vertically upwards with a certain speed. He then throws another stone downwards with the same speed. Find the ratio of the speeds of the two stones when they hit the ground.
A 1 : 1
B 1 : 2
C 1 : 4
D Cannot be found from the given information.
5 m উচ্চতা হতে একটি বলকে 20 m/s বেগে অনুভূমিকের সাথে 30° কোণে উপরের দিকে নিক্ষেপ করা হলো। তাহলে বলটির বিচরণ কাল কত ? (A ball is thrown upward with an angle of 30° with the horizontal line from a height of 5 m with a velocity of 20 m/s. What will be the time of flight of the ball?)
A 10±1989.8s
B 10-1989.8s
C 10+1989.8s
D 10±29.8s
5 m উচ্চতা হতে একটি বলকে 20 m/s বেগে অনুভূমিকের সাথে 30° কোণে উপরের দিকে নিক্ষেপ করা হলো। তাহলে বলটির বিচরণ কাল কত? (A ball is thrown upward with an angle of 30° with the horizontal line from a height of 5 m with a velocity of 20 m/s. What will be the time of flight of the ball?)
A 10±1899.8s
B 10-1989.8s
C 10+1989.8s
D 10±29.8s
The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.
A Equal to
B Less than
C Greater than
D None of these
A 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
A The batsman did not hit the ball hard enough
B Velocity is proportional to the force exerted on the ball
C There is a force on the ball opposing the motion
D There is no unbalanced force on the ball, so the ball would try to come to rest
A ball and a bat costs 110 taka. The bat costs 100 taka more than the ball. How much does the ball cost ?
A 5
B 10
C 15
D 100

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