371753 A vehicle moving at \(36 \mathrm{~km} / \mathrm{hr}\) is to be stopped by applying brakes in the next \(5 \mathrm{~m}\). If the vehicle weight \(2000 \mathrm{~kg}\), determine the average force that must be applied on it

371754 A ball of mass \(0.45 \mathrm{~kg}\) which is initially at rest is hit by a bat. The bat remains in contact with the ball for \(3 \times 10^{-3} \mathrm{~s}\). During this time period the force on the ball by the bat is given as \(\mathbf{F}(\mathbf{t})=\left[\left(\alpha \times 10^{6}\right) \mathrm{t}-\left(\beta \times 10^{9}\right) \mathbf{t}^{2}\right] \mathrm{N}\) where \(\alpha\) and \(\beta\) are constants. The ball's speed, immediately as it loses contact with the bat is \(20 \mathrm{~m} / \mathrm{s}\). The correct relation between \(\alpha\) and \(\beta\) as

371755 A block of mass \(20 \mathrm{~kg}\) is suspended through two spring balance with negligible mass as shown in figure. What will be the readings in the upper and lower balance respectively?

371756 An elevator is descending (see the figure below) with a uniform acceleration. If the force exerted by the block \(A\) on, block \(B\) is \(4 \mathrm{~N}\), what is the acceleration of the lift, if the mass of the block \(A\) is \(1 / 2\) kg

371753 A vehicle moving at \(36 \mathrm{~km} / \mathrm{hr}\) is to be stopped by applying brakes in the next \(5 \mathrm{~m}\). If the vehicle weight \(2000 \mathrm{~kg}\), determine the average force that must be applied on it

371754 A ball of mass \(0.45 \mathrm{~kg}\) which is initially at rest is hit by a bat. The bat remains in contact with the ball for \(3 \times 10^{-3} \mathrm{~s}\). During this time period the force on the ball by the bat is given as \(\mathbf{F}(\mathbf{t})=\left[\left(\alpha \times 10^{6}\right) \mathrm{t}-\left(\beta \times 10^{9}\right) \mathbf{t}^{2}\right] \mathrm{N}\) where \(\alpha\) and \(\beta\) are constants. The ball's speed, immediately as it loses contact with the bat is \(20 \mathrm{~m} / \mathrm{s}\). The correct relation between \(\alpha\) and \(\beta\) as

371755 A block of mass \(20 \mathrm{~kg}\) is suspended through two spring balance with negligible mass as shown in figure. What will be the readings in the upper and lower balance respectively?

371756 An elevator is descending (see the figure below) with a uniform acceleration. If the force exerted by the block \(A\) on, block \(B\) is \(4 \mathrm{~N}\), what is the acceleration of the lift, if the mass of the block \(A\) is \(1 / 2\) kg

371753 A vehicle moving at \(36 \mathrm{~km} / \mathrm{hr}\) is to be stopped by applying brakes in the next \(5 \mathrm{~m}\). If the vehicle weight \(2000 \mathrm{~kg}\), determine the average force that must be applied on it

371754 A ball of mass \(0.45 \mathrm{~kg}\) which is initially at rest is hit by a bat. The bat remains in contact with the ball for \(3 \times 10^{-3} \mathrm{~s}\). During this time period the force on the ball by the bat is given as \(\mathbf{F}(\mathbf{t})=\left[\left(\alpha \times 10^{6}\right) \mathrm{t}-\left(\beta \times 10^{9}\right) \mathbf{t}^{2}\right] \mathrm{N}\) where \(\alpha\) and \(\beta\) are constants. The ball's speed, immediately as it loses contact with the bat is \(20 \mathrm{~m} / \mathrm{s}\). The correct relation between \(\alpha\) and \(\beta\) as

371755 A block of mass \(20 \mathrm{~kg}\) is suspended through two spring balance with negligible mass as shown in figure. What will be the readings in the upper and lower balance respectively?

371756 An elevator is descending (see the figure below) with a uniform acceleration. If the force exerted by the block \(A\) on, block \(B\) is \(4 \mathrm{~N}\), what is the acceleration of the lift, if the mass of the block \(A\) is \(1 / 2\) kg

371753 A vehicle moving at \(36 \mathrm{~km} / \mathrm{hr}\) is to be stopped by applying brakes in the next \(5 \mathrm{~m}\). If the vehicle weight \(2000 \mathrm{~kg}\), determine the average force that must be applied on it

371754 A ball of mass \(0.45 \mathrm{~kg}\) which is initially at rest is hit by a bat. The bat remains in contact with the ball for \(3 \times 10^{-3} \mathrm{~s}\). During this time period the force on the ball by the bat is given as \(\mathbf{F}(\mathbf{t})=\left[\left(\alpha \times 10^{6}\right) \mathrm{t}-\left(\beta \times 10^{9}\right) \mathbf{t}^{2}\right] \mathrm{N}\) where \(\alpha\) and \(\beta\) are constants. The ball's speed, immediately as it loses contact with the bat is \(20 \mathrm{~m} / \mathrm{s}\). The correct relation between \(\alpha\) and \(\beta\) as

371755 A block of mass \(20 \mathrm{~kg}\) is suspended through two spring balance with negligible mass as shown in figure. What will be the readings in the upper and lower balance respectively?

371756 An elevator is descending (see the figure below) with a uniform acceleration. If the force exerted by the block \(A\) on, block \(B\) is \(4 \mathrm{~N}\), what is the acceleration of the lift, if the mass of the block \(A\) is \(1 / 2\) kg