Physics
Chapter No 3
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#1 The numerical ration of displacement to distance is
A) Equal to 1
B) Less than one
C) Greater than one
D) Less than 1 equal to 1
#2 A stone drop from the top of a in tower reaches the ground 2 sec) If 'g' is 10m/sec2,then length of tower is
A) 10m
B) 20m
C) 30m
D) 40m
#3 The ratio of distance covered to displacement covered by a body along a semiricle of radius 'r' is
A) 2π
B) π/2 c)
C) π
D) 2πr
#4 A projectile will cover the same horizontal distance when the initial angles of projection are
A) 30° and 40°
B) 30° and 45°
C) 60° and 30°
D) 45° and 60°
#5 Projectile is thrown in such away that its maximum hieght equal to its maximum range, the angle of projection is
A) 76°
B) 60°
C) 72°
D) 45°
#6 A boy sitting in a moving train is facing the engine, He tosses a coin up, the coin fails behind him, the train is moving
A) Forward with Uniform speed
B) Backward with Uniform speed
C) Forward with acceleration
D) Forward with deceleration
#7 A body of mass 40gm is moving with a velocity of 2cm/sec on a horizantal frictionless table, the force on a body is
A) 39,200 dyne
B)160 dyne
C) 80 dyne
D) zero
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