You are holding your physics book, pushing upwards on it with the palm of your hand. The reaction to the weight of the book is the force on __________ by __________.
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[Ques. 2] You are holding your physics book, pushing upwards on it with the palm of your hand. The reaction to this force is the force on __________ by __________.
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[Ques. 3] You can tell whether a projectile is going upwards or downwards from the sign of __________.
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[Ques. 4] You throw a ball straight up. As the ball is going up, the direction of the velocity and acceleration point __________.
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[Ques. 5] You drop a freely falling body at the equator and at the north pole. The acceleration of the freely falling body at the equator is _______________ the acceleration of the freely falling body at the north pole.
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[Ques. 6] You stand on a bathroom scale at the equator and at the north pole. The scale reading at the equator is _______________ the scale reading at the north pole.
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[Ques. 7] A car goes around a curve at 40 m/s. An accelerometer in the car measures the centripetal acceleration of a 2-kg body in the car to be 8 m/s2 . The radius of the curve is __________.
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[Ques. 8] You whirl a 2-kg body attached to a 1 meter cord around your head in a nearly horizontal circle with a speed of 4 m/s. The tension in the cord is _________.
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[Ques. 9] Starting from rest, a 2-kg body acquires a speed of 8 m/s in 2 seconds. The net force acting on the body is __________.
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[Ques. 10] You push on a block on frictionless ice with a force of 8 N, causing it to accelerate at 2 m/s2 . The mass of the block is __________.
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