Title Explained Solutions for TBAT Physics June 2025.pdf ✅

Explained Solutions 1. The correct answer is 3) Solution Let Initial velocity: u = 0.5 m/s, Accelerates: a = 1.0 m/s2 , and Distance: s = 21.0 m. From s = ut + 1 2 at 2 21 = 0. 5( )t + 1 2 ( )t 1. 0 2 0 = t2 + t − 42 Using quadratic formula: t = −1± 1( )2−4 1( ) −42( ) 2 1( ) = −1±13 2 t = 6.0 s (only positive solution) Thus, the person will take 6.0 seconds to reach the end of the walkway. 2. The correct answer is 1) Solution A parachutist begins his descent by jumping vertically downward from a helicopter. At the start, he accelerates due to the force of gravity acting upon him, with very little air resistance slowing him down: ΣF = Fdrag − mg = ma where the drag force is proportional to the velocity squared F . drag = Dv2 As his speed increases, the drag force (air resistance) opposing his motion grows until it becomes equal in magnitude to the gravitational force. At this point, the forces balance, and the parachutist no longer accelerates but continues to fall at a constant speed known as the terminal velocity. At the terminal velocity → Dvterminal 2 = mg Explained Solutions for TBAT Physics June 2025 1 © All rights reserved. No part of this publication may be reproduced, distributed, and/or adapted, stored in any retrieval system, or transmitted in any form or by any means without the permission of Ignite Education. Violators will be prosecuted to the full extent of the law.

u 2 = gx u = gx = 9. 8( ) 5. 6( ) ∴ u ≈ 7.4 m/s 4. The correct answer is 3) Circular motion: ΣF C = m v 2 R mg − N = m v 2 R The greatest speed at which the car can move without leaving the road at the top of this bridge, the normal force becomes zero ( ) N = 0 ; mg − 0 = m v 2 R v 2 = Rg v = (23)(9. 8) ∴ v ≈ 15 m/s 5. The correct answer is 5) The bounded two-body system corresponds to the energy values where the total energy is negative; E K + U < 0. total = Thus, the correct answer is 5) The bound system is not found in any region between Points A and E. Explained Solutions for TBAT Physics June 2025 3 © All rights reserved. No part of this publication may be reproduced, distributed, and/or adapted, stored in any retrieval system, or transmitted in any form or by any means without the permission of Ignite Education. Violators will be prosecuted to the full extent of the law.