NEWTON'S LAWS OF MOTION
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Laws of Motion

270303 A stream of water flowing horizontally with a speed of\(15 \mathrm{~ms}^{-1}\) pushes out of a tube of cross sectional area \(10^{-2} \mathrm{~m}^{2}\) and hits a vertical wall near by what is the force exerted on the wall by the impact of water assuming. that it does not rebound? (Density of water \(=1000 \mathbf{~ k g ~ m}^{-3}\) )

1 \(1250 \mathrm{~N}\)
2 \(2250 \mathrm{~N}\)
3 \(4500 \mathrm{~N}\)
4 \(2550 \mathrm{~N}\)
Laws of Motion

270304 What is the magnitude of the total force on a driver by the racing car he operates as it accelerates horizontally along a straight line from rest to\(60 \mathrm{~m} / \mathrm{s}\) in \(8.0 \mathrm{~s}\) (mass of the driver \(=\mathbf{8 0 k g}\) )

1 \(0.06 \mathrm{KN}\)
2 \(0.78 \mathrm{KN}\)
3 \(1.4 \mathrm{KN}\)
4 \(1.0 \mathrm{KN}\)
Laws of Motion

270305 Abase ball of mass \(150 \mathrm{gm}\) travelling at speed of \(20 \mathrm{~m} / \mathrm{s}\) is caught by a fielder and brought to rest in \(0.04 \mathrm{~s}\).The force applied to the ball and the distance over which this force acts are respectively

1 \(75 \mathrm{~N}, 0.8 \mathrm{~m}\)
2 \(37.5 \mathrm{~N}, 0.4 \mathrm{~m}\)
3 \(75 \mathrm{~N}, 0.4 \mathrm{~m}\)
4 \(37.5 \mathrm{~N}, 0.8 \mathrm{~m}\)
Laws of Motion

270306 A dynamometer\(D\) is attached to two blocks of masses \(6 \mathrm{~kg}\) and \(4 \mathrm{~kg}\). Forces of \(20 \mathrm{~N}\) and \(10 \mathrm{~N}\) are applied on the blocks as shown in Fig. The dynamometer reads

1 10N
2 20N
3 6N
4 14N
Laws of Motion

270303 A stream of water flowing horizontally with a speed of\(15 \mathrm{~ms}^{-1}\) pushes out of a tube of cross sectional area \(10^{-2} \mathrm{~m}^{2}\) and hits a vertical wall near by what is the force exerted on the wall by the impact of water assuming. that it does not rebound? (Density of water \(=1000 \mathbf{~ k g ~ m}^{-3}\) )

1 \(1250 \mathrm{~N}\)
2 \(2250 \mathrm{~N}\)
3 \(4500 \mathrm{~N}\)
4 \(2550 \mathrm{~N}\)
Laws of Motion

270304 What is the magnitude of the total force on a driver by the racing car he operates as it accelerates horizontally along a straight line from rest to\(60 \mathrm{~m} / \mathrm{s}\) in \(8.0 \mathrm{~s}\) (mass of the driver \(=\mathbf{8 0 k g}\) )

1 \(0.06 \mathrm{KN}\)
2 \(0.78 \mathrm{KN}\)
3 \(1.4 \mathrm{KN}\)
4 \(1.0 \mathrm{KN}\)
Laws of Motion

270305 Abase ball of mass \(150 \mathrm{gm}\) travelling at speed of \(20 \mathrm{~m} / \mathrm{s}\) is caught by a fielder and brought to rest in \(0.04 \mathrm{~s}\).The force applied to the ball and the distance over which this force acts are respectively

1 \(75 \mathrm{~N}, 0.8 \mathrm{~m}\)
2 \(37.5 \mathrm{~N}, 0.4 \mathrm{~m}\)
3 \(75 \mathrm{~N}, 0.4 \mathrm{~m}\)
4 \(37.5 \mathrm{~N}, 0.8 \mathrm{~m}\)
Laws of Motion

270306 A dynamometer\(D\) is attached to two blocks of masses \(6 \mathrm{~kg}\) and \(4 \mathrm{~kg}\). Forces of \(20 \mathrm{~N}\) and \(10 \mathrm{~N}\) are applied on the blocks as shown in Fig. The dynamometer reads

1 10N
2 20N
3 6N
4 14N
Laws of Motion

270303 A stream of water flowing horizontally with a speed of\(15 \mathrm{~ms}^{-1}\) pushes out of a tube of cross sectional area \(10^{-2} \mathrm{~m}^{2}\) and hits a vertical wall near by what is the force exerted on the wall by the impact of water assuming. that it does not rebound? (Density of water \(=1000 \mathbf{~ k g ~ m}^{-3}\) )

1 \(1250 \mathrm{~N}\)
2 \(2250 \mathrm{~N}\)
3 \(4500 \mathrm{~N}\)
4 \(2550 \mathrm{~N}\)
Laws of Motion

270304 What is the magnitude of the total force on a driver by the racing car he operates as it accelerates horizontally along a straight line from rest to\(60 \mathrm{~m} / \mathrm{s}\) in \(8.0 \mathrm{~s}\) (mass of the driver \(=\mathbf{8 0 k g}\) )

1 \(0.06 \mathrm{KN}\)
2 \(0.78 \mathrm{KN}\)
3 \(1.4 \mathrm{KN}\)
4 \(1.0 \mathrm{KN}\)
Laws of Motion

270305 Abase ball of mass \(150 \mathrm{gm}\) travelling at speed of \(20 \mathrm{~m} / \mathrm{s}\) is caught by a fielder and brought to rest in \(0.04 \mathrm{~s}\).The force applied to the ball and the distance over which this force acts are respectively

1 \(75 \mathrm{~N}, 0.8 \mathrm{~m}\)
2 \(37.5 \mathrm{~N}, 0.4 \mathrm{~m}\)
3 \(75 \mathrm{~N}, 0.4 \mathrm{~m}\)
4 \(37.5 \mathrm{~N}, 0.8 \mathrm{~m}\)
Laws of Motion

270306 A dynamometer\(D\) is attached to two blocks of masses \(6 \mathrm{~kg}\) and \(4 \mathrm{~kg}\). Forces of \(20 \mathrm{~N}\) and \(10 \mathrm{~N}\) are applied on the blocks as shown in Fig. The dynamometer reads

1 10N
2 20N
3 6N
4 14N
Laws of Motion

270303 A stream of water flowing horizontally with a speed of\(15 \mathrm{~ms}^{-1}\) pushes out of a tube of cross sectional area \(10^{-2} \mathrm{~m}^{2}\) and hits a vertical wall near by what is the force exerted on the wall by the impact of water assuming. that it does not rebound? (Density of water \(=1000 \mathbf{~ k g ~ m}^{-3}\) )

1 \(1250 \mathrm{~N}\)
2 \(2250 \mathrm{~N}\)
3 \(4500 \mathrm{~N}\)
4 \(2550 \mathrm{~N}\)
Laws of Motion

270304 What is the magnitude of the total force on a driver by the racing car he operates as it accelerates horizontally along a straight line from rest to\(60 \mathrm{~m} / \mathrm{s}\) in \(8.0 \mathrm{~s}\) (mass of the driver \(=\mathbf{8 0 k g}\) )

1 \(0.06 \mathrm{KN}\)
2 \(0.78 \mathrm{KN}\)
3 \(1.4 \mathrm{KN}\)
4 \(1.0 \mathrm{KN}\)
Laws of Motion

270305 Abase ball of mass \(150 \mathrm{gm}\) travelling at speed of \(20 \mathrm{~m} / \mathrm{s}\) is caught by a fielder and brought to rest in \(0.04 \mathrm{~s}\).The force applied to the ball and the distance over which this force acts are respectively

1 \(75 \mathrm{~N}, 0.8 \mathrm{~m}\)
2 \(37.5 \mathrm{~N}, 0.4 \mathrm{~m}\)
3 \(75 \mathrm{~N}, 0.4 \mathrm{~m}\)
4 \(37.5 \mathrm{~N}, 0.8 \mathrm{~m}\)
Laws of Motion

270306 A dynamometer\(D\) is attached to two blocks of masses \(6 \mathrm{~kg}\) and \(4 \mathrm{~kg}\). Forces of \(20 \mathrm{~N}\) and \(10 \mathrm{~N}\) are applied on the blocks as shown in Fig. The dynamometer reads

1 10N
2 20N
3 6N
4 14N